EXTRACT FROM THE GAZETTE OF INDIA, PART II, SEC. 3,SUB-SEC.  (i) 

Appearing on page No.1536 to 1598 Date 7.6.79 

MINISTRY OF SHIPPING AND TRANSPORT
(Transport Wing)

NOTIFICATION

(MERCHANT SHIPPING)

New Delhi, the 15^th May, 1979 

            G.S.R.  797-Whereas a draft of the certain rules further to amend Merchant Shipping (Load Line) Rules 1977, was published, as required by section 311 read with section 436, of the Merchant Shipping Act, 1958 (44 of 1958) at pages 690 to 718 of the Gazette of India, Part II Section 3 Sub-Section (i), dated the 25^th March, 1978 with the notification of the Government of India in the Ministry of Shipping and Transport, (Transport Wing), No. G.S.R. 423, dated the 25^th October, 1977 inviting objections and suggestions from all person likely to be affected thereby till the expiry of sixty days from the date of publication of the said notification in the Official Gazette; 

            And whereas the copies of the said Gazette were made available to the public on the 27^th March, 1978 ; 

            And whereas no objection or suggestions have been received from the public on the said draft ; 

            Now, therefore, in exercise of the powers conferred by section 311, read with section 436 of the said Act, and in Supersession of the Indian Merchant Shipping (Load Lines) Rules 1934, the Central Government hereby makes the following rules, namely :-
 

PART 1
 Preliminary

1.         Short title, commencement and application :- (1) These rules may be called the Merchant Shipping (Load Line) Rules, 1979. 

            (2)        They shall come into force at once.

            (3)        They shall apply to-- 

(a)        every Indian ship, other than a ship of war, a fishing vessel, a pleasure yacht or a sailing vessel, wherever it is ;

(b)        every ship other than an Indian ship, not being a ship of war, a fishing vessel, a pleasure yacht or a sailing vessel while it is at a port or place in India or within the territorial waters of India, which is-- 

                        (i)         an existing ship of 150 tons gross or more;or

                        (ii)         a new ship of 24 metres of more in length : 

            Provided that these rules shall not apply to any ship other than Indian ship by reason of its being at a port or place in India or within the territorial waters of India if it would not have been at any such port or place but for the strees of weather or any other circumstances that neither the master nor the owner or character, if any, of the ship could have prevented or forestalled. 

2.         Definition:- In these rules, unless the context otherwise requires,-           

(1)        "Act" means the Merchant Shipping Act, 1958 (44 of 1958); 

(2)        "amidship" means at the middle of the length (L); 

(3)        "approved" means approved by the Central Government or by any other officer appointed by it in this behalf; 

(4)        "Assigning Authority" means the Director General or any other person appointed by the Central Government to be the assigning authority for the purposes of these rules by a notification in the Official Gazette; 

(5)        "block co-efficient" or the symbol (cb) means block co-efficient obtained by the formula

                             Δ    

            CB = -----------

                           B.L_pl                       

where, is volume of the modulded displacement of the ship, excluding bossing, in a ship with metal shell or, as the case may be, the volume of displacement to the outer surface of the hull in a ship with a shell of any other material, both taken at a moulded draught of d₁ ; d₁ is 85 per cent of the least modulded depth; 

(6)        "breadth" or the symbol (B) means the maximum breadth of the ship, measured amidships to the moulded line of the frame in a ship with a metal shell, or as the case may be, to the outer surface of the hull in a ship with a shell of any other material; 

                        (7)        "depth for freeboard" or the symbol (D) - 

(a)        in relation to a ship other than these referred to in sub-clause (b) means the moulded depth of the ship amidships plus   the   thickness   of   the    free board deck stringer   plate,   where  fitted,  plus    the  value of the expression  

T  (L – S)  if the exposed freeboard deck is

        L

completely sheathed between superstructures, when "T" means thickness of the exposed sheathing clear of deck opening; and 'S' means the total length of super structures; and       

(b)        in relation to a ship having a rounded gunwale with a redius greater than four per cent of the breadth of the ship (B), or in relation to a ship having topsides of unusual form means – the depth fo freeboard of a ship having midship section with vertical topsides and with the same round of beam and area of top side section equal to that provided by the actual midship section; 

(8)                    "enclosed superstructure" means a superstructure with enclosing bulk heads of efficient construction, access openings in such bulkheads being fitted with ails and watertight doors and all other openings in sides and ends of such superstructures being fitted with efficient watertight means of closing but does not include a bridge or a poor fulfilling these requirements unless access is provided by which the crew can reach machinery and other working spaces within the bridge or poop by alternative means which are available for the purpose at all times when access openings in the bulkheads of the bridge or poop are closed;

(9)                    "existing ship" or "existing sailing vessel" means a ship or sailing vessel the keep of which was laid before the 21^st day of July, 1968 ; 

(10)                   "flush deck ship" means a ship which has no superstructures on a free board deck; 

(11)                   "freeboard" means the distance measured vertically downwards amidships from the upper edge of the deckline described in rule 15 of these rules to the position at which the upper edge of the appropriate load line mark lies; 

(12)                   "freeboard deck" means the deck from which the freeboard is assigned being either--                        

(a)        the uppermost complete deck exposed to whether and sea, which has permanent means of closing all openings in the weather part thereof and below which all openings in the sides of the ship are fitted with permanent means of watertight closing.   In a ship having a discontinuous freeboard deck, the lowest line of the exposed deck and the continuation of that line parallel to the upper part of the deck is taken as the freeboard deck; or                                   

(b)        on the application of the owner and subject to the approval of the Director General, a deck lower than that described in paragraph (a), provided it is a complete and permanent deck continuous in the fore and aft direction at least between the machinery space and peak bulkheads and continuous athwartships.  When this lower deck is stepped the lowest line of the deck and the continuation of that line parallel to the upper part of the deck is taken as the freeboard deck.                     

(13)                   "height of superstructure" means the least vertical height measured at side from the top of the superstructure deck beams to the top of the freeboard deck beams; 

(14)                   "length" or the symbol (L) means ninety-six per cent of the total length on a water line at eighty-five per cent of the least moulded depth measured from top of the keel, or the length from the force side of the stem to the axis of the rudder stock on the water line if that be greater; 

(15)                   "length of a superstructure" means length of the part of the superstructure which lies within the length (L) 

(16)                   "moulded depth" in relation to a ship means the vertical distance measured form the top of the keel to the top of the freeboard deck beam a side: 

                                                Provided that--- 

(a)        in the case of awood or composite ship, it shall be measured from the lower edge of keel rabeet.  Where the form at the  lower part of the midship section is of a hollow character, or where thick garboards are fitted, the distance is measured from the point where the line of the flat of the bottom continued inwards cuts the side of the keel; 

(b)        in ships having rounded gunwale, it shall be measured to the point of intersection of the moulded lines of the deck and side plating, the lines extending as though the gunwale were of angular design; 

(c)        in ships where the freeboard deck is stepped and the raised part of the deck extends over the point at which the moulded depth is to be determined, the moulded depth shall be measured to a line of reference extending from the lower part of the deck long a line parallel with the raised part of the deck. 

(17)       "new ship" or "new sailing vessel" means a ship or sailing vessel the keel of which was laid on or after the 21^st day of Juluy, 1968; 

(18)       "perpendiculars" means the forward and after perpendicular taken at the forward and the after end of the length.(L); 

(19)       "principal officer" means the Principal Officer of the Mercantile marine Department of the district concerned;           

(20)       "sailing vessel" includes all ships provided with sufficient sail area for navigation under sails along whether or not fitted with mechanical means of propulsion; 

(21)       "Schedule" means a Schedule appended to these rules ; 

(22)       "superstructure" means a decked structure on the freeboard deck, extending from side to side plating not being in board of the shell plating more than four per cent of the breadth (B), and includes a raised quarter deck; 

(23)       "timber deck cargo" means a cargo of timber other than wood pulp or similar cargo carried on uncovered part of a freeboard or super-structure deck 

(24)       "type A ship" and "type B ship" means ships as interpreted in the First Schedule; 

(25)       "watertight" in relation to any part of ship below the freeboard deck means capable of preventing the passage in any direction of water under pressure or otherwise as the case may be having regard to the functional requirement of that part of the ship; 

(26)       "weathertight" in relation to any part of ship above the freeboard deck means that water cannot penetrate through that part into the ship under any condition of sea and weather encountered at sea. 

PART II
 Surveys and Certificates 

3.         Application for Survey-Application for the survey of a ship for the purpose of assignment of freeboard and for the issue of a load line certificate to the ship shall be made to the Assigning Authority by or on behalf of the owner of the ship.  The applicant shall furnish to the Assigning Authority as described hereunder such plans, drawings specifications and other documents and information relating to the design and construction of the ship as the Assigning Authority may require--

(a)        the Principal Officer on behalf of the Director General; and

(b)        any other person appointed by the Central Government to be an Assigning Authority for the purposes of these rules by a notification published in the Official Gazette.  

4.         Load Line Surveys – (1)  After receipt of the application and the documents together with other relevant information required by rule 3, the Assigning Authority shall cause the ship to be surveyed by a surveyor with a view to ascertaining- 

(a)        whether the ship complies with such of the requirements of Part IV of these rules and the First Schedule; and 

            (b)        such other data as may be necessary-- 

(i)         for the assignment of freeboard to the ship in accordance with Part V of these rules and the Second Schedule; and 

(ii)         to enable the stability information to be supplied to the master of the ship pursuant to Part VI of these rules and the Third Schedule. 

                        (2)        In the course of survey of a ship pursuant to the provisions of sub-rule (1), the ship and any of its fittings shall be submitted to such tests as may, in the opinion of the Assigning Authority, be necessary to ascertain that the ship complies with the requirements of sub-rule (1).  Any test pertaining to stability of a ship shall be subject to the requirements of rule 31. 

            (3)        The owner or any other person on his behalf applying for the survey of the ship under rule 3, shall afford all necessary facilities for such survey and shall, at the request of the Assigning Authority, furnish, for the Assitning Authority's use and retention if necessary, such further documents and information as the Assigning Authority may require. 

5.         Report of Survey :- (1) On completion of the survey, the Surveyor shall submit a report of survey to the Assigning Authority giving the results of the survey and his findings on the condition of the ship with reference to the requirements of rule 4.                

                         (2)        The report of survey shall be accompanied by the Record of Conditions of Assignment in the form set out in the Fourth Schedule complying with the requirements of tule 26 and the computations of freeboard complying with the requirement of Part V of these rules and the second Schedule. 

                        (3)        In the case of any ship which is required to comply with the requirements of Part I of the Third Schedule relating to stability the surveyor shall furnish to the Central Government such information as may be necessary to determine whether the ship complies with these requirements. 

6.         Assignment of freeboards L1) The Assigning Authority shall- 

(a)        if satisfied on scrutiny of report of survey that the ship complies with the applicable requirements of Part IV of these rules and the First schedule, and 

(b)        on receipt of an intimation from the Director General that it is statisfied that the ship complies with the requirements of Part VI of these rules and the Third Schedule relating to stability-

assign freeboard to the ship in accordance with Part V of these rules and second Schedule. 

            (2)        On assignment of freeboards, the Assigning Authority shall furnish to the owner of the ship- 

(a)                 particulars of freeboards so assigned;

(b)                 directions specifying- 

(i)         the load lines to be marked on the ship in accordance with the requirements of Part III of these rules;

(ii)                 the position in which those load lines, the deck line and the load line mark are to be so marked; and

(c)                 two copies of the Record of Conditions of Assignment. 

7.         Issue of Load Line Certificates and forms thereof – Subjectto the provisions of rule 12, the Assigning Authority shall, on being satisfied that the ship has been duly marked in accordance with the directions given to the owner of the ship under rule 6, issue either an International Load Line Certificate (1966) or an India Load Line Certificate as may be required by section 316 of the Act, in the form set out for such certificates in the Fifth Schedule. 

            8.         Duration of Certificate:-Every Load Line Certificate issued under these rules shall be valid until a date to be determined by the Assigning Authority not being a date more than five years after the date of completion of survey of the ship under rule 4.  Such date shall be specified by the Assigning Authority in every certificate issued by it failing which the certificate shall not be deemed to be a valid certificate. 

            9.         Extension of Load Line Certificate :- (1) Where any ship, in respect of which a Load Line Certificate is I force, has been surveyed following an application made by the owner to issue of the fresh certificate to take effect on the expiry of the current certificate, the Assigning Authority may - 

(i)         if satisfied on serutiny of survey that the ship complies with applicable requirements of Part V of these rules and of the First Schedule relating to conditions of assignment.                       

                        (ii)         On receipt of an intimation from the Central Government that the ship complies with the requirements of the Third Schedule relating to stability, extend the validity of the current certificates of the ship  by a period not exceeding five months, if he considers that it is not reasonably practicable to issue a fresh certificate.  In every such case, a fresh certificate shall be issued after the expiry of the extended date of validity of the current certificate. 

                        (2)        No such extension granted under sub-rule (1) shall have effect unless particulars of the date upto which the period of validity of the certificate is extended, together with particulars of place at and date on which extension was granted, are endorsed by the Assigning Authority on the current certificate. 

                        (3)        The period of validity of a fresh certiicate ultimately issued to a ship under sub-rule (1) shall not exceed five years from the date of completion of survey referred to in sub-rule (1). 

                        10.        Cancellation of Load Line Certificates :- (1) Where the Central Government is satisfied, whether by a report from an Assigning Authority or a Surveyor or otherwise, that --- 

(i)         the ship to which the certificate relates does not comply with the conditions of assignment, or 

(ii)         the structural strength of the ship is lowered to such an extent as to render the ship unsafe, or 

(iii)        information on the basis of which freeboards were assigned to the ship has proved to the incorrect in matters of material importance. 

                        (2)        Where it comes to the notice of the Central Government that --- 

(i)         the certificate of a ship is not endorsed as required by rule 11 ; or 

(ii)         a new certificate is issued in respect of the ship; or 

(iii)        the ship has ceased to be an Indian Ship within the meaning of the Act, it may, after giving the owner of the ship a reasonable opportunity of making his representation, cancel or cause to cancel any Load Line Certificate issued under these rules.                            

                        11.        Periodical Inspection of Ships :- (1) Every ship in respect of which a Load Line Certificate is in force shall be periodically inspected by a surveyor in accordance with the provisions of this rule in order to ensure that -- 

(a)        the fittings and appliances for the protection of openings, the guard rails, the freeing ports and the means of access to crew's quarters in the ship are in an effective condition; and 

(b)        no changes have been made or taken place in the hull or superstructures of the ship which may render inaccurate any date on the basis of which freeboards and been assigned to the ship. 

            (2)        Application for the periodical inspection shall be made by or on behalf of the owner of the ship to an Assigning Authority, who shall appoint a surveyor ot carry out the inspection. 

            (3)        The surveyor may, in the course of any such inspection, require such tests to be carried as in his opinion, may be necessary to establish that the ship complies with the requirements of sub-rule (1). 

            (4)        Periodical inspections required by this rule shall be carried out annually within a period of nine to fifteen months commencing on the date three months before and concluding three months after each anniversary of the date of completion of the survey of the ship leading to the issue of its current Load Line Certificate : 

            Provided that the Central Government may, if it is satisfied that the circumstances so require permit the annual inspection to be carried out before or after the period specified therefore. 

            (5)        The surveyor, if satisfied after inspection that the ship complies with the requirements of sub-rule (1), shall, in the space provided for this purpose in the Load Line Certificates, endorse a record of such inspection and certify--- 

(a)        in the case of an International Load Line Certificate (1966), that the ship was found to comply with the relevant provisions of the Convention; and 

(b)        in the case of an India Load Line Certificate, that the ship was found to comply with the relevant provisions of these rules. 

            Every such endorsement shall be dated and signed by the surveyor carrying out the inspection, specifying the Assigning Authority on whose behalf the inspection was carried out. 

            12.        Exemption and Exemption Certificate :-- (1) Where the Central Government exempts any ship pursuant to the provisions of Section 316 of the Act, the Director General shall issue in respect of such ship an International Load Line Exemption Certificate in the form set out in the Fifth Schedule. 

            (2)        Save in so far as the nature and terms of any such exemption require to the contrary the provisions of rules 1 to 6 and of rules 8 to 11 shall apply to any ship so exempted and to any exemption certificate so issued to any such ship in the like manner as they apply to any other ship except that-- 

(i)         references in the aforesaid rules to Assigning Authority shall be deemed to be references to the Central Government ; and 

(ii)         sub-rule (5) of rule 11 shall be deemed to have been substituted by the following, namely :- 

"(5)       the surveyor, if satisfied after inspection that the ship continues of comply with the conditions subject to which the exemption was granted shall endorse the exemption certificate to that effect in the space provided and date and sign the endorsement." 

PART III
Load Lines and Marks 

13.        Appropriate Marks :- For the purposes of this part, the expression "appropriate marks" in relation to a ship means the load lines required to be marked on the ship under clause (b) of sub-rule (2) of rule 6 and the deck-line and load line mark. 

14.        Marking:- The owner of a ship, on receipt from the Assigning Authority of particulars and directions referred to in sub-rule (2) of rule 6, shall cause the appropriate marks to be marked on each side of the ship in accordance with the said directions and requirements of this part. 

15.        Deck-line:- (1) The deck-line shall consist of a horizontal line 300 millimetres in length and 25 millimetres in width.  It shall be marked amidships on each side of the ship in accordance with the provisions of this rule so as to indicate the position of the freeboard deck. 

(2)        Subject to the provisions of sub-rule (3), the deck-line shall be marked in such a position on the side of the ship that its upper edge passes through the point amidships where the continuation outward-- 

(a)        of the upper surface of the freeboard deck, or 

(b)        of any sheathing of the freeboard deck, intersects the outer surface of the shell of the ship as shown in figure 1. 

            (3)        Where, in the opinion of the Assigning Authority, the design of the ship or any other circumstance renders it impracticable to mark the deck-line in accordance with the provisions of sub-rule (2), the Assigning Authority may, in the directions given under sub-rule (2) of rule 6 include a direction that the deck-line may be marked by refernce to another point on the side of the ship which is as near as practicable to the position referred to in sub-rule (2). 

(16)                   Load line mark : The load line mark shall consist , as shown in Figure 2, of a ring 300 millimetres in outside diameter and 25 millimetres wide, intersected by a horizontal line 450 millimetres long and 25 millimetres wide the upper edge of which passes through the center of the ring.  The center of the ring shall be marked amidships vertically below the deck-line, so that except as otherwise provided in rule 29, the distance from the center of the ring to the upper edge of the deck-line is equal to the Summer freeboard assigned to the ship.

17.        Load lines :- (1) Load lines as described in sub-rule (2) and rule 18 shall be deemed to indicate the maximum depth to which a ship marked therewith may be loaded in the circumstances described in the sixth Schedule in relation to appropriate load lines, zones, areas and seasonal periods. 

(2)        Except as otherwise provided in rule 18 and rule 29, load lines shall consist as shown in Figure 2 of horizontal lines each 230 milimetres in length and 25 millimetres in width extending forward or abaft of a vertical line 25 millimetres in width marked 540 millimetres forward of the center of the ring of the load line mark and at right angles to that line.  The individual load lines shall be-- 

(i)         the summer load line, which shall extend forward of the aforesaid vertical line and the marked "S".  It shall correspond horizontally with the line passing through the center of the ring of the load line mark; 

(ii)         the Winter load line, which shall extend forward of the aforesaid vertical line and be marked "W". 

(iii)        the Winter North Atlantic load line, which shall extend forward of the aforesaid vertical line and be marked "WNA"; 

(iv)        the Tropical load line, which shall extend forward of the aforesaid vertical line and be marked "T" 

(v)         the fresh Water load line, which shall extend abaft the aforesaid vertical line and be marked "F"; 

(vi)        the Tropical fresh Water load line, which shall extend abaft the aforesaid vertical line and be marked "TF";

            (3)        The maximum depth of loading referred to in sub-rule (1) shall be the depth indicated by the upper edge of the appropriate load line described in sub-rule (2). 

            18.        Timber load lines :- (1) Timber load lines, as shown in figure 3, shall consist of horizontal lines of the dimensions specified in respect of such lines in rule 17, extending abaft or forward of a vertical line of the dimensions specified in respect of such a line in that rule, marked 540 millimetres abaft the center of the ring of load line mark and at right angles of that line.  Individual timber Load Lines shall be as follows :-

(i)         the Summer timber load line, which shall extend abaft the said vertical line and be marked LS; 

(ii)         the Winter load line, which shall extend abaft the said vertical line and be marked LW; 

(iii)        the Winter north atlantic timber load line which shall extend abaft the said vertical line and be marked LWNA; 

(iv)        the Tropical timber load line, which shall extend abaft the said vertical line and be marked LT ; 

(v)         the Fresh water timber load line, which shall extend forward of the said vertical line and be marked LTF;           

(vi)        the Tropical Fresh water timber load line, which shall extend forward of the said vertical line and be marked LLF;           

(2) The maximum depth of loading referred to in sub-rule (1) of rule 17 shall be the depth indicated by the upper edge of the appropriate timber load line.

19.        Appropriate load line :- The appropriate load line in respect of a ship at any particular place and time shall be ascertained in accordance with the provisions of the Sixth Schedule. 

20.        Position of load lines :-Each load line required  to be marked on a ship shall be marked in such a position of each side of the shipl that the distance measured vertically downwards from the upper edge of the deckline to the upper edge of the load line is equal to the freeboard assigned to the ship which is appropriate to that load line. 

21.        Methods of marking L1) The appropriate marks shall be marked on each side of the ship in accordance with the requirements of sub-rules (2) and (3) in such a manner as to be plainly visible. 

(2)        If the sides of the ship are of metal, the appropriate marks shall be cut in, center punched or welded; if the sides of the ship are of wood, the marks shall be cut into the plaking to a depth of not less than 3 millimetres; if the sides are of other materials to which the foregoing method of marking cannot be effectively applied, the marks shall be permanently affixed to the sides of the ship by bonding or some other effective method. 

(3)        The appropriate marks shall be painted in white or yellow if the background is dark, and in black if the background is light. 

22.        Authorisation of removal etc.  of appropriate marks:- After the appropriate marks have been marked on a ship, such marks shall not be concealed, defaced or obliterated or they shall not be removed or altered except unde the authority of the Assigning Authority. 

23.        Mark of assigning authority:- (1) The mark of the Assigning Authority described in sub-rule (2) shall be marked on each side of the ship in a position alongside the load line mark either above the horizontal line forming part of that mark or above and below it. 

(2)        An Assigning Authority's mark shall consist of not more than four initials to identity the Authority's name, each measuring approximately 115 millimetres in height and 75 millimetres in width. 

PART IV
Conditions of Assignment 

24.        Assignment of freeboards :- (1) Except as otherwise provided in sub-rules (2) and (3), every ship to which freeboards are to be assigned under these rules shall comply with the requirements applicable to it under Part I of the First Schedule. 

(2)        Every ship, being a ship of Type 'A' to  which requirements of Part II of the First Schedule aply, every ship, being a ship of Type 'B' to which the requirements, of Part III of the First Schedule apply or every ship, being a ship to be assigned with timber freeboards, to which the requirements of part IV of the First Schedule apdshall

comply with the requirements of the respective part of the First Schedule any also the requirements of Part I of the said Schedule except in so far as the compliance or Part II, III or IV as the case may be, of the said Schedule may otherwise require. 

            (3)        Every existing ship, not being a ship to which freeboards are required to be assigned in accordance with clause (a) of rule 28 read with the proviso to clause (b) thereof, shall comply with such of the requirements relevant to the assignment of freeboards to ships as were applicable to it under the law in force immediately prior to the coming into force of these rules. 

            25.        Compliance with conditions of assignment:- (1) Except as otherwise provided in sub-rule (2), a ship shall be deemed to be not complying with the conditions of assignment-- 

(a)        if at any time after the assignment of freeboards to it, there has been any alteration of the hull superstructures, fitting or appliances of the ship to such extent that either---           

(i)         any requirement applicable to the ship under rule 24 is not complied with by it; or 

(ii)         the record of conditions of assignment made in relation to the ship pursuant to rule 26 is rendered inaccurate in a material respect ; or 

(b)        if the record of conditions of assignment is not kept on board the ship in accordance with sub-rule (2) of rule 26. 

            (2)        Notwithstanding any alteration in the ship as described in clause (a) of sub-rule (1), a ship  shall be deemed to be complying with the conditions of assignment if either--

(a)        fresh freeboards appropriate to the conditions of ship after the alterations have been assigned to it and it has been marked with load line and a fresh certificate has been issued to its owner; or 

(b)        the alteration has been inspected by a surveyor on behalf of the Assigning Authority, and the assigning authority is satisfied that the alteration is not such as to require any change in the freeboards assigned to the ship and full particulars of the alteration together with date and place of inspection have been endorsed by the surveyor on the record of conditions of assignment. 

            26.        Record of conditions of assignment:-(1)The record of conditions of assignment in respect of the hull, superstructure fittings and appliances of a ship to which freeboard are assigned shall be in the form set out in the Fourth Schedule, or a form as near thereto as circumstances permit, and shall contain the particulars required by that form.  Such particulars may be furnished by attaching to the record a copy of report of survey and specifying in the record passages from that report in which the relevant particulars are given. 

            (2)        The record shall be completed by the surveyor carrying out the survey of the ship pursuant to rule 4 and shall be furnished by him to the assigning authority in accordance with the provisions of rule 5.  Two copies of the record shall be sent by the assigning authority to the owner of the ship together with the particulars and directions required to be so furnished by rule 6. 

            (3)        One copy of the record of conditions of assignment particulars and directions furnished by the assigning Authority to the owner of the ship shall, at all times be  kept on board the ship in the custody of the master of the ship. 

PART V
Free Boards 

27.        Types of freeboards :- The freeboards assignable to any ship under the rules shall be -- 

            (i)         Summer freeboard;

(ii)                 Tropical freeboard ;

(iii)                Winter freeboard;

(iv)                Winter North Atlantic freeboard;

(v)                  Fresh Water freeboard;

(vi)                Tropical Fresh Water freeboard;

(vii)               Summer Timber freeboard;

(viii)             Winter Timber freeboard;

(ix)               Winter North Atlantic Timber freeboard;

(x)                 Tropical Timber freeboard;

(xi)               Fresh Water Timber freeboard; and

(xii)              Tropical Fresh Water Timber freeboard. 

28.        Determination of freeboards :- Except as otherwise provided in rule 29, 

(a)        the freeboards to be assigned to a new ship shall be determined in accordance with the provisions of the Second Schedule; and 

(b)        the freeboards to be assigned to an existing ship shall be determined in accordance  with the provisions applicable in that behalf to the ship under the rules in force immediately prior to the coming into force of these rules : 

            Provided that if an existing ship has been so constructed or altered as to comply with the requirements of the First Schedule applicable to a new ship of its type, and an application is made in respect of such ship for the assignment of freeboards determined in accordance with the provisions of the Second Schedule, such freeboards may be assigned to the ship 

            29.        Exceptions regarding freeboards :- (1) Greater than minimum freeboard—Any ship may, on the application of the owner made in that behalf be assigned greater than the minimum freeboard determinable in accordance with rule 28, subject to the following conditions, namely :- 

(a)        On survey of the ship pursuant to rule4, the assigning authority is satisfied that the ship complies with the requirements of-- 

                                    (i)         Part IV of these rules ;

(ii)                 the First Schedule, other than those relating to stability;

(iii)                Part VI of these rules in so far as they relate to stability; and

(iv)                the Third Schedule in so far as they relate to stability. 

(b)        The ship is not assigned with timber freeboards. 

(c)        If the greater than minimum freeboard to be assigned to the ship is such that the position of load lines on the sides of the ship appropriate to that freeboard would correspond to, or be lower than, the position at which the lowest of the load lines appropriate to minimum freeboards for that ship would have been marked,-- 

(i)         load line appropriate to the greater than minimum freeboard and the fresh water freeboard should only be marked on the sides of the ship; 

(ii)         the load line appropriate to the greater than minimum freeboard shall be called the "All season load line" which shall consist of horizontal line interesting the load line mark and such mark shall be placed accordingly; 

(iii)        the vertical line described in sub-rule (2) of rule 17 shall be omitted; and 

(iv)        subject to the provisions of clause (iii), the fresh water load line shall be as described in sub-rule (2) of rule 17 and shall be maked accordingly.

(2)        Lesser than minimum freeboard – On an application made in this behalf by the owner of a hppper type ship, which is engaged on voyages other than international voyages during the course of which it does not go farther than 20 miles from the nearest land at any time, the Director General of Shipping may, subject to the conditions set out in Part IV of the Second Schedule, assign such ship lesser than  minimum free, board reduced to--- 

(i)         five-eighth of the appropriate minimum freeboard determinable in accordance with the Table B set out in Part V of the Second Schedule ; or 

(ii)         one-held of the appropriate minimum freeboard determinable in accordance with clause (4) or clause (5) of paragraph 4 of the Second Schedule : 

Provided that such freeboard shall not in either case be less than 150 millimetres. 

            30.        Special position of deck-line and correction of free-board:- In any case in which the deck-line is to be marked on the sides of a ship in accordance with the provision of sub-rule (3)n of rule 15, the freeboards to be assigned to the ship shall be corrected to allow for the vertical distance by which the position of the deck-line is altered by virtue of the provisions of sub-rule (3) of rule 15. The location of the point by reference to which the deckline has been so marked and the identity of the deck which has been regarded as the freeboard deck shall be specified in the load line certificate issued in respect of such ship.

PART VI
Stability and loading 

31.        Information as to stability of ships – (1) The owner of every ship to which freeboards are assigned under these rules shall, for the guidance of the master of the ship, provide information relating to the stability of the ship in accordance with the provisions of this rule. 

            (2)        Such information shall include stability particulars appropriate to the ship in respect of all maters specified in Part II of the Third Schedule and the method of computation and the form of the particulars should be so far as practicable, in accordance  with Part III of that Schedule or equivalent thereto.  The stability characteristics shall comply with the criteria specified in Part I of the Third Schedule.  

            (3)        Subject to the provision of sub-rule (4), the information shall, when first supplied, be based on the determination of stability by means of an inclining test which shall, unless the Director General otherwise permits, be carried out in the presence of the Surveyor appointed by the Director General.  The information first supplied shall be replaced by fresh information whenever its accuracy is materially affected by alteration of the ship.  Such fresh information shall, if the Director General so requires be based on a further inclining test. 

(4)        The Director General may--- 

(a)        in the case of any ship, permit the information to be based on the determination of stability of sister ship by means of an inclining test. 

(b)        in the case of any ship specially designed for the carriage of liquids or ore inbulk dispense with the inclining test if from the information available in respect of similar ships, he is satisfied that the ships proportions and arrangements are such as to ensure more than sufficient stability in all  probable loading conditions. 

(5)        The information, and any fresh information to replace the same pursuant to the provisions of sub-rule (3), shall, before issue to the master, be submitted by or on behalf of the owner to the Director General for his approval, together with a copy thereof for his record, and shall incorporate such additions and amendments as the Director General may in any particular case required. 

(6)        Information provided pursuant to the foregoing provisions of this rule shall be furnished by the owner of the ship to the master in the form of a book which shall be kept on board the ship at all times in the custody of the master of the ship. 

32.        Information as to loading and ballasting of ships:-(1) The owner of any whip being a ship of more than 150 metres in length specially designed to carry liquids or are in bulk, to which freeboards are assigned under these rules shall, for the information of the master of the ship, provide information relating to the loading and ballasting of the ship in accordance with the provisions of sub-rules (2) and (3). 

            (2)        Such information shall consist of working instructions specifying in detail the manner in which the ship is to be loaded and; ballasted so as to avoid the creation of unacceptable stresses in its structure and shall indicate the maximum stresses permissible for the ship           

            (3)        The provisions of sub-rule (5) of rule 31 shall apply in the like manner to information required under sub-rule (1).  Information duly approved by the Director General shall be contained in the book to be furnished to the master of the ship pursuant to the provisions of sub-rule (6) of rule 31, so however, that information required by rule 31 and rule 32 is separately shown in the book under separate headings specifying the number and heading of each rule. 

THE FIRST SCHEDULE
 See rules 4, 6, , 24, 28 and 29 )

Conditions of Assignment

PART I
General 

1.         Interpretations – (1) Positions 1 and 2;  For the purpose of this schedule two positions of hatchways, doorways and ventilators are defined as follows :

            Position 1—Upon exposed freeboard and raised quarter decks, and upon exposed superstructure decks situated forward of a point located a quarter of the ship's length from the forward perpendicular. 

            (2)        Type 'A' ships. (i) A type 'A' ship is one which is designed to carry liquid cargoes in bulk, and in which cargo tanks have only small access openings closed by watertight gasketed covers of steel or equivalent material.  Such a ship necessarily has the following inherent features : 

                        (a)        high integrity of the exposed deck; and           

(b)        high degree of safety against flooding, resulting from low permeability of loaded cargo spaces and the degree of sub-division usually provided. 

            (ii)         A type 'A' ship, if over 150 metres in length, and designed to have empty compartments when loaded to her summer load line, shall be able to withstand the flooding of any one of these empty compartments at an assumed permeability of 0.95, and remain afloat in a satisfactory condition of equilibrium which unless otherwise required by the Director General of Shipping shall be in accordance with the following clause (iii) Provided that if the ship exceeds 225 metres in length, its machinery space shall also be treated as one of the floodable compartments mentioned above but with an assumed permeability of 0.85. 

            (iii)        The final condition of equilibrium of a flooded type.  A ship shall  atleast comply with the following:- 

(a)        The final waterline after flooding is below the lower edge of any opening through when progressive flooding may taken place ;    

(b)        the maximum angle of heal due to unsymmetrical flooding is of the order of 15⁰ ; 

(c)        the metacentric height in the flooded condition is at least 50mm when calculated by the constant displacement method;                       

(d)        the ship has adequate residual stability in the final flooded conditions. 

            (3)        Type 'B' Ships – All ships which do not come within the purview of type 'A' ships in sub-paragraph (2) above shall be considered as type 'B' ships. 

            2.         Equivalents and Exemptions 

            The assigning authority may with the approval of the Director General of Shipping-- 

(1)        allow any fitting, material, appliances or apparatus to be fitted in a ship, in place of any fitting, material, appliance, apparatus or provisions respectively which is required under any of the provisions of this Schedule, if satisfied by trial thereof or otherwise that it is at least as effective as that so required.                       

(2)        grant in any exceptional case exemptions from the requirements of any of the said provisions of this Schedule on condition that the freeboards to be assigned to the ship are increased to such an extent that the safety of the ship and protection afforded to the crew till be considered no less effective than would be the case if the ship fully complied with those requirements with the usual rule freeboard.

PART II
General conditions of Assignment for all ships 

3.         Strength of ship – The design and the condition of the ship shall be such that her general structural strength shall be sufficient for the freeboard assigned to her. 

4.         Stability of ship – The design and the construction of the ship shall be such as to ensure that her stability in all probable loading conditions will be sufficient for the freeboards to be assigned to her for the intended services in accordance with the criteria of stability and methods of calculations laid down in the Sixth Schedule. 

5.         Weathertight Doors—(i) All access openings in bulkheads at ends of enclosed superstructure or on any other bulkheads or sides and ends of casings where such weathertight doors are required to be fitted shall be fitted with doors of steel or other equivalent material, permanently and strongly attached to the bulkhead, and framed, stiffened and fitted so that the whole structure is of equivalent strength to the unpierced bulkhead and weathertight when closed.  The means for securing these doors weather tight shall consists of gaskets and clamping devices or other equivalent means and shall be permanently attached to the bulkhead or to the doors themselves and doors shall be so arranged that they can be operated from both sides of the bulkhead. 

            (ii)         Except as otherwise provide in this Schedule, the height of the silts of access openings in bulkheads at the ends of enclosed superstructure shall be at least 380 millimetres above the deck. 

            6.         Superstructure and bulkheads—Bulkheads at exposed ends of enclosed superstructures shall be of efficient construction.

            7.         General requirements of hatchways.—(1) The construction and the means for securing the weathertightness of cargo and other hatchways in positions 1 and 2 shall be at least equivalent to the requirements of paragraphs 8 and 9. 

            (2)        Covernings and hatchway covers to exposed hatchways on decks above the superstructure deck shall be of such construction and be fitted with such means for securing the weathertightness of the hatchway as are adequate having regard to its position. 

            8.         Hatchways closed by portable covers and secured weathertight by tarpaulins and battening devices—(1) Hatchways coamings : Every hatchway shall have a coaming of substantial construction.  The coaming shall be constructed of mild steel unless otherwise permitted.  The height of the coaming above the deck shall be at least-- 

            600 millimetres if the hatchway is in position 1. 

            450 millimietres if the hatchway is in Position 2. 

            (2)        Hatchway covers—(a) The width of each bearing surface for hatchway covers shall be at least 65 millimetres. 

            (b)        Where the covers are made of wood, the finished thickness shall be at least 60 millimetres in association with a span of not more than 1.5 metres and the thickness of cover for larger spans shall be increased in the ratio of 60 millitmeters to a span of 1.5 metres.  The ends of wooden covers shall be protected by galvanized steel bands efficiently secured. 

            (c)        Where the covers are made of mild steel the strength shall be calculated with assumed loads in accordance with the table below and the product of the maximum stress thus calculated and the factor 4.25 shall not exceed the minimum ultimate strength of the material.  Covers shall also be so designed as to limit the deflection to not more than 0.0028 times the span under these loads. 

Table of Loads
(per sq. metre)

Ship's Length(L) Hatchway in                  Hatchway in Position 1          Position 2

Over 24 meters but                   to be ascertained           by linear
less than 100 metres                interpolation                

            (3)        Portable beams--- Where portable beams for supporting hatchway covers are made of mild steel, the strength of such beams shall  be calculated with the appropriate assumed load ascertained in accordance with the Table in the sub-paragraph (2) above and the product of the maximum stress thus calculated and the factor 5 shall not exceed the minimum ultimate strength of the material.  Further, such beams shall also be so designed as to limit the deflection to not more than 0.0022 times the span under the above assumed loads. 

(4)        Pontoon covers—(a) Where pontoon covers of mild steel are used in place of portable beams and covers, their strength shall be calculated with the appropriate assumed load ascertained in accordance with the Table in the sub-paragraph (2) and the product of the maximum stress thus calculated and the factor 5 shall not exceed minimum ultimate strength of the material.  Further such beams shall also be so designed as to limit the  deflection to not more than 0.0022 times the span. 

            (b)        Mild steel plating forming the tops of such covers shall be not less in thickness than 1 per cent of the spacing of the stiffners of 6 millimetres, whichever is the greater. 

            (5)        Carriers or sockets – Carriers or sockets for portable beams shall be of substantial construction and shall provide means for the efficient fitting and securing of the beams.  Where rolling types of beams are used, the arrangements shall ensure that the beams remain properly in position when the hatchway is closed. 

            (6)        Cleats—Cleats shall be set to fit the taper of the wedges.  They shall be at least 65 millimetres wide and spaced not more than 150 millimetres from the hatch. 

            (7)        Battens and wedges—Battens and wedges shall be efficient and in good condition.  Wedges shall be tough wood or other equivalent material.  They shall have a taper of not more than 1 in 6 and shall be not less than 13 millimetres thick at the toes. 

            (8)        Tarpaulins :- At least two layers of tarpaulin in good condition shall be provided for each hatchway in position 1 or 2.  The tarpauline shall be waterpoof and of ample strength.  They shall be of a material of at least as approved standard weight and quality. 

            (9)        Security of hatchway covers—For all  hatchways in position 1 or 2 steel bars or other equivalent means shall be provided in order to efficiently and independently secure each section of hatchway covers after the tarpaulins are battened down hatchway covers of more than 1.5 metres in length shall be secured by least two such securing appliances. 

(10)       Material—If the material of construction of any hatchway coamings, covers and beams are made of other than mild steel the coamings covers and beams made from such materials shall be of equivalent strength and stiffness as those specified in this schedule for mild steel. 

            9.         Hatchways closed by weathertight covers of steel or other equivalent material fitted with gaskets and clamping devices—(1) Hatchway coamings : (a) The coamings of hatchways shall be of substantial construction.  The height of coamings shall be at least. 

            600 millimetres in Position 1 

            450 millimetres in Position 2 

            (b)        Provided if the Director General of Shipping so approves the height of the coaming may be reduced or in exceptional circumstances the coaming may be dispensed with, subject to the condition that the safety of the ship will not thereby by impared in consequence in the worst sea and weather condition likely to be encountered by the ship in service. 

            (2)        Weathertight Covers – (a) The strength of weather-tight covers, made of mild steel shall be calculated with an assumed load in accordance with the Table of Load in paragraph 6(2) and the product of the maximum stress thus calculated and the factor 4.25 shall not exceed the minimum ultimate strength of the material.  Further such covers shall be so designed as to mild the deflection to not more than 0.0028 times the span under these loads. 

            (b)        Mild steel plating forming the tops of covers shall not be less in thickness than one per cent of the spacing of stiffners of 6 millimeters if that be greater. 

            (3)        Means of securing weather tightness – The hatchcovers shall be made weathertight by fitting gaskets and clamping devices.  Any equivalent arrangements, if adopted, shall ensure that the tightness can be maintained in any sea conditions and for the purpose tests for tightness shall be required at the initial survey, and may be required at periodical Surveys and at annual inspections or at more frequent intervals. 

            10.        Machinery space openings – (1) Machinery space openings in position 1 or 2 shall be properly framed and efficiently enclosed by steel casing of ample strengths account being taken of the extend, if any, to which the casing is protected by other structures. 

            (2)        Every doorway in such casings shall be fitted with doors complying with paragraph 5 of this Schedule having sills of at least the following heights : 

600 millimetres above the deck if the opening is in Position 1 

380 millimetres above the deck if the opening I in Position 2. 

Other openings in such casing shall be fitted with permanently attached covers or steel, by which it can be closed weather tight and except in the case of a cover consisting of a plate secured by bolts in capable of being operated from both sides. 

            (3)        Coamings of any fiddley, funnel or machinery space ventilators in a exposed position on the freeboard or super-structure deck shall be as high above the deck as practicable having regard to its position and adequate protection from the sea. 

            11.        Miscellaneous openings in freeboard and superstructure decks—(1) manholes and flush scuttles in position 1 or 2 or within superstructure other than enclosed superstructure shall be closed by substantial covers capable of being made watertight. Unless secured by closely spaced bolts, the covers shall  be made permanently attached. 

            (2)        Openings in a deck other than a hatchway, machinery space opening, manhole and flush scuttle,-- 

(a)        if situated in the freeboard deck shall be protected by an enclosed superstructure or by a deck-house or companion way equivalent in strength and weather-tightness to an enclosed superstructure ; 

(b)        if situated in an exposed position in a deck over an enclosed superstructure and giving access to space within that superstructure or on top of a deckhouse on the freeboard deck and giving access to space below the free board deck, shall be protected by an efficient deckhouse or companionway fitted with weathertight doors; 

(c)        if situated in an exposed position in a deck above the deck over an enclosed superstructure and giving access to space within that superstructure, shall be protected either in accordance with the requirements of sub-paragraph (b) or to such lessor extent as having regard to its position. 

            (3)        Doorways in such efficient deckhouse companionway or enclosed superstructure as referred to in sub-paragraph (2) shall be fitted with doors complyin with the requirements of paragraph 5 and shall have the following minimum sill heights -- 

                        600 millimetres in Position 1

                        380 millimetres in Position 2 

            12.        Ventilators – (1) Ventilators in position 1 or 2 to space below the freeboard deck or decks of enclosed superstructure shall have coaming of steel or other equivalent material, substantially constructed and efficiently connected to the deck.                       

(2)(i)                  The height of the ventilator coamings shall be, at least 

(a)        900 millimetres above the deck if the ventilator is in Position 1; 

(b)        760 millimetres above the deck if the ventilator is in Position 2; 

            Provided that where a ventilator is situated in a position in which it will be particularly subjected to weather and sea the height of the coaming shall be increased sufficiently over the above minimum height so as to provide adequate protection, having regard to its position. 

            (ii)         Where the coaming of any ventilator of any ventilator exceeds 900 millimetres in height it shall be efficiently supported by brackets, stays or other means. 

            (3)        Ventilators in Position 1 or 2 passing through super-structures other than enclosed superstructures shall have coaming of steel or other equivalent material, substiantially constructed and connected to the freeboard deck and at least 760 millimetres in height above the deck. 

            (4)        Subject to the subparagraph (5), every ventilator opening in Positon 1 or 2 shall be provided with an efficient appliance by which it can be closed and secured weathertight.  Every such closing appliance so provided on board a ship of not more than 100 metres in length shall be permanently attached to and in the case of any other ship shall either be so attached or be conveniently stowed near the ventilator to which it is fitted. 

            (5)(a)     A ventilator in Position 1 the coaming of which exceeds 4.5 metres in height above the deck, and a ventilator in Position 2 the coaming of which exceeds 2.3 metres in height above the deck, need not be fitted with a closing appliance unless-- 

(i)         it serves the machinery spaces or a Cargo compartment or 

(ii)         the fitting of such an appliance is necessary in the circumstances in order to provide adequate protection. 

               (b)     A ventilator in Positon 1 or 2 leading to space in a battery room shall not be fitted with a closing appliance. 

            (13)       Air Pipes—(1) Where air pipes to ballast and other tanks extend above the freeboard or superstructure decks, the exposed parts of the pipes shall be of substantial construction and the exposed opening of any such air pipe shall be fitted with efficient means of closing weathertight which shall be permanently attached thereto. 

            (2)(i)      The height above the deck of the air pipe opening through which water may gain access below shall be-- 

(a)        at least 760 millimetres if that deck is freeboard deck.

(b)        at least 450 millimetres if that deck is above the superstructure of standard height or such greater height not exceeding 760 millimetres as it is considered necessary for adequate protection having regard to the lower height of superstructure than the standard. 

              (ii)       Provided that the height described in the preceding sub-paragraph 2(i) may in any particular case be lower than the minimum specified therein, if such height may unreasonably interfere with the working of the ship and if the closing arrangements are such as to ensure adequate protection from the sea even with the lower height. 

            14.        Cargo ports and other similar openings – (i) The number of cargo ports and other similar openings in the sides of the ship below the freeboard deck or in the sides or ends of superstructure which form continuous part of the shell of the ship shall be as few as compatible with the design and proper working of the ship. 

            (2)        Such Cargo ports and openings shall be provided with doors so fitted and designed as to ensure watertightness and structural integrity commensurate with surrounding shell plating. 

            (3)        Unless so permitted by the Director General in the circumstances the lowr edge of such openings shall not be below a line drawn parallel to the freeboard deck at side, which has at its lowest point the upper edge of the uppermost load line. 

            15.        Scuppers, Inlets and Discharges—(1) All discharges led overboard through the shell or a ship from either-- 

(a)                 spaces below the freeboard deck, or

(b)                 spaces within enclosed superstructure, or

(c)                 spaces within any deckhouses on the freeboard deck fitted with weathertight doors in accordance with paragraph 5,

shall be fitted with efficient and accessible means for preventing water from passing inboard in accordance with the following sub-paragraphs. 

            (2)(a)     Subject to clause (b) and (c) such means of closing shall consist of a single automatic non-returns valve fitted at the shell and having positive means of closing from a position above the freeboard deck.  Such position shall be readily accessible and shall be provided with an indicator showing whether the valve is open or closed. 

               (b)     If the vertical distance from the summer load water line to the inboard end of the discharge pipe exceeds 0.01L, the discharge may have two automatic non-return valves without positive means of closing, the inboard one of which should always be easily accessible for examination, where however, that vertical distance exceeds 0.02L, a single automatic non-return valve without positive means of closing may be provided if it will be equally effective in the circumstances.  The single valve or the outboard valve where there are two shall be situated as close to the hull as practicable and substantially connected thereto. 

              (c)      Scuppers and discharge pipes originating at any level and penetrating the shell either moe than 450 millimetres below the free board deck or less than 600 millimetres above the summer load waterline shall be provided with a non-return valve at the shell.  This valve, unless required by clause (a) may be dispensed with, if the piping is of substantial construction. 

            (4)(a)     The controls of any valve situated in a manned machinery space, and serving a man of auxiliary sea inlet or discharge or bilge injection system shall be so sited as to be readily accessible at all times under service conditions.  Valves referred to in this and the following sub-paragraph shall be equipped with an indicator showing whether the valve is open or closed. 

            (4)(b)     The controls of any valve situated in an unattended machinery space and serving a sea inlet or discharge of bilge injection system shall be so sited as to be readily accessible at all times under service conditions, particular attention being paid in this regard to possible delay in reaching or operating the controls.  In addition, the machinery space in which the valve is situated shall be equipped with an efficient warning device to give warning at suitable control position of any entry of water into the machinery space other than water resulting from the normal operation of the machinery. 

            (4)(c)     In this sub-paragraph "unattended machinery space" means a machinery space which during normal operation of the ship at sea is unmanned for any period, and "manned machinery space" means a machinery space other than an unattended machinery space. 

            (5)        Every scupper leading from a superstructure other than an enclose superstructure or from a deckhouse not fitted with weathertight doors shall be led over board. 

            (6)        All valve and shell fittings required by the provisions of this paragraph shall be of steel, bronze or other suitable ductile material, and all pipes referred to in this paragraph shall be steel or other equivalent material. 

            16.        Side scuttles—(1) Side scuttles to spaces below the freeboard deck or to spaces within ecnlsoed superstructures shall be fitted with efficient inside deadlights arranged to so that they can be effectively closed and secured watertight. 

            (2)        No side scuttle shall be fitted in a position so that its sill is below a line drawn parallel to the freeboard deck at side and having its lowest point 2.5 per cent of the breadth (B) above the Summer Load Line or 500  millimetres, whichever is the greater distance. 

            (3)        The side scuttles, together with their glasses, if fitted, and deadlights, shall be of substantial and approved constructure. 

            17.        Freeing ports—(1) Where hulkwarks on weather portions of freeboard deck or superstructure decks form wells, ample provision shall be made for rapidly freeing the deck of water and draining them.  The minimum freeing port area (A) on each side of the ship for each well on the freeboard deck shall be given by the following formulae-- 

            (a)        On freeboard deck with sheer in way of well being equal to or greater than the standard sheer, where L is 20 metres or less-- 

A=0.7 + 0.035 (sq.metres) where L is greater than 20 metres; 

            A=0.07 (sq. metres). 

the length of bulkwark (L) in no case need be taken greater than 0.7L.

(b)        If the height of the bulkwark (h) is higher than 1.2 metres or less than 0.9 metre, the freeing port areas are to increase of or decrease by the following amounts : 

Where h is greater than 1.2 metres, A in sub-para (a) above is to increase by 

a=(h-1.2) x .0004⁰ x L sq. metres— 

Where h is less than 0.9 metres, A in sub-para (a) above is to decrease by 

a=(0.9-h)  00004⁰ x L sq. metres. 

            (c)        On superstructure decks, the freeing port area shall be only one-half of the area obtained from paragraph (a) as amended by paragraph (b). 

(d)        In ships with no sheer the calculated area from paragraphs (a) and (b) shall be increase d by 50 per cent.  Where the sheer is less than the standard, the percentage shall be obtained by linear inter-polation. 

(2)        In ships having superstructures which are open at either or both ends, adequate provisions of freeing the space within such superstructures shall be made to the satisfaction of the Assigning Authority. 

(3)        Two-thirds of freeing port area required shall be provided in the half of the well nearest the lowest point of the sheer curve. 

(4)        The lower edges of the freeing ports shall be as near to the deck as practi- 

(5)        All such openings in the bulkwarks shall be protected by rails or bars spaced approximately 230 millimetres apart.  If shutters are fitted to freeing ports, ample clearance shall be provided to prevent jamming.  Hinges shall have pins or bearings of non-corrodible material.  If shutters are fitted with securing appliances, these appliances shall be of approved construction. 

18.        Protection of the Crew—(1) The strength of the deckhouses used for the accommodation of the crew shall be to the satisfaction of the Director General or any other Assigning Authority as the case may be. 

(2)        Efficient guard rails or bulkwarks shall be fitted on the boundaries of all exposed parts of the freeboard decks.  The height of the bulkwarks or guard rails shall be at least 1 metre. 

Provided that if this height would interfered with the normal operation of the ship at some particular span, a lesser height over that span may be approved by the Assigning authority on being fully satisfied that alternative or adequate protection is provided. In specified areas of the exposed decks, the assigning authority may also permit the use of guard wire in lieu of guard rails. 

(3)        The opening below the lowest course of the guard rails or wires shall not exceed 230 millimetres.  The other courses shall not be more than 380 millimetres apart.  In the case of ships with rounded gunwales, the stanchions shall be secured to the flat boundary of the deck. 

(4)        Satisfactory and safe means in the form of guard rails, guard wires, lifelines gangways or under-deck passages, etc., shall be provided for the protection of the crew in getting to and from their quarters, the machinery space and all other parts used in the necessary work of the ship. 

(5)        Deck Cargo when carried shall not interfere with the conditions of assignments enumerated in this schedule nor shall it in any way adversely affect the protective measures for the crew.

PART III
Special conditions of assignments for type A ships 

19.        Machinery casings – The Machinery Casing on Type As hips shall be protected by (i) an enclosed poop or bridge of at least standard height or (ii) a deckhouse of equal height and equivalent strength and weathertightness 

Provided that this requirement shall not apply and the casing may accordingly be exposed--- 

(a)        if there is no opening in the casing which gives direct access from the free-board deck to the machinery space; or 

(b)        if the only opening in the casing has a steel weathertight door complying with paragraph 5 and leads to a space or passangeway which is as strongly, constructed as the casing and is separated from the stairway to the machinery space by a second similar steel weathertight door. 

20.        Gangway and access – (1) References in this paragraph to a poop or detached bridge on Type A ships include reference to a deckhouse fitted in lieu of and serving the purpose of a poop or detached bridge. 

(2)        Access between the poop and the detached bridge shall be by means of either --- 

(a)        Gangway complying with the requirements of sub-para (4), or 

(b)        an underdeck passage complying with the requirements of sub-para (5), or 

(c)        other equally effective and equivalent approved means of access. 

(3)        In the case of a ship the crew of which may in the course of their duties be required to go in adverse weather conditions to a position or positions forward of the detached bridge, or forward of the poop in cases where there is no detached bridge and all crew accommodation and machinery spaces are situated at the after end of the ship, access to such positions shall be by means of either-- 

(a)        a gangway complying with the requirements of sub-para (4), or 

(b)        an underdeck passage complying with the requirements of sub-para (5), or 

(c)        a walkway complying with the requirements of sub-para (6). 

(4)        A gangway, connecting the specified super-structure or deckhouse in lieu and required under this Part, shall comply with the following requirements-- 

(a)        The gangway shall be permanently and efficiently constructed at the level of the superstructure deck.  Efficient means of access from gangway level to the deck shall be provided at each terminal. 

            (b)        the gangway platform shall be at least 1 metre in width and of non-slip material.  The platform shall be fitted at each side throughout its length with guard rails or guard wires supported by stanchions.  Such rails or wires shall consist of not less than 3 courses, the lowest being not more than 230 mm above the platform and intermediate ones being not more than 380 mm apart, but the uppermost one being not less than 1 metre above the platform.  The stanchions supporting the rails or guard wires shall be at intervals of not m ore than 1.5 metres. 

(5)        An underdeck passageway connecting and providing unobstructed access between specified superstructures or deckhouses in lieu, and required under this Part, shall comply with the following requirements 

(a)        the passage shall be constructed oil0tight and gastight immediately below the freeboard deck and shall be well-lighted and adequately ventilated by mechanical ventilation.  The passage shall be fitted with efficient gas detection system. 

(b)        the passage shall be situated throughout its length at distance from the shipside of not less than one-fifth of the breadth (B) of the ship, Provided that in the case of a ship so designed as to render compliance with this requirement is not practicable, two under-deck passages may be provided one to port and one to starboard, each of which shall comply with all requirements except the requirement of this clause. 

(c)        the means of exit from the passage to the freeboard deck shall be so arranged as to be as near as practicable to the working areas of the crew but in no case be more than 90 metres apart and fitted with efficient means of closing capable of quick release and operable from either sides.  The companionway or deckhouse on the freeboard deck protecting the exist shall be fitted with steel door complying with paragraph 5 of this Schedule. 

(6)        A walkway providing unobstructed passage if necessary by means of elevated passage over permanent obstruction, and required under this Part, shall comply with the following requirements-- 

(a)        the walkway shall be situated as near as practicable to the centerline of the ship and shall be not less than 1 metre in width and fitted with guardrails or guardwires complying identifically with those in sub-para (4) (b) of this paragraph; 

(b)        the walkway shall provide free access to and from freeboard deck, set in such guard rails or guard wires as near as practicable to the working areas, so however, that such openings shall be on the alternate sides of the walkway and be situated not more than 90 metres apart on either side; 

(c)        if the length of the exposed deck to be traversed exceeds 70 metres, the walkway shall be provided with shelters of substantial construction set out from the walkway at intervals not exceeding 45 metres, every such shelter being capable of accommodating at least one person and so constructed as to afford weather protection on the forward, port and starboard sides. 

21.        Hatchway covers—The covers of hatchway in an exposed position on the freeboard deck, on a forecastle deck or on the top of an expansion trunk shall be of steel, of efficient construction, and watertight when secured. 

22.        Freeing arrangements – (1) All exposed parts of the freeboard deck and superstructure decks of Type 'A' ships shall be fitted at shipsides for at least half their length with guard fails or guard wires in lieu of bulkwarks or other equally effective freeing arrangements.  Such guard rails or guard wires shall comply with the requirements for them in sub-para (4)(b) of paragraph 20 of this Part and the upper edge of the sheer strake shall be as low as practicable. 

            (2)        If the superstructures of the Type A ships are connected by a trunk, the exposed parts of the freeboard deck in way of the trunk shall be fitted at ship sides with guard rails or guard wires complying with the requirements for them in sub-para (4) (b) of paragraph 20 of this Part. 

            (3)        If the ship is so constructed that notwithstanding the provisions of freeing ports and arrangements it will be particularly subjected under service conditions to the building up of quantities of water on the freeboard deck efficient breakwater shall be fitted in suitable positions on that deck. 

PART IV 
Special conditions of assignment for type B ships with reduced freeboard 

            23.        Gangway and access—Unless a type B ship with reduced freeboard complies fully with requirements of paragraph 20 as if the ship were a Type A ship, such a ship shall comply with the requirements of the following sub-paragraphs, namely :- 

            (1)        References in this paragraph to a poop or detached bridge include references to a deckhouse fitted in lieu of and serving the purpose of a poop or detached bridge. 

            (2)        Access between the poop and the detached bridge shall be by means of an efficiently constructed gangway of substantial strength connecting those structures, fitted on or near the center line of the ship.  The gangway shall be at least 1 metre in width and shall be fitted at each side throughout its length with guard rails or guard wires complying with the requirements set out in relation to such rails or wires in paragraph 20(4)(b).   If the length of the gangway exceeds 70 metres, shelters complying with requirements set out in relation to shelters in paragraph 20(6)(c) shall be provided in way of gangway. 

            (3)        In the case of a ship the crew of which in the course of their duties are required to go in adverse weather conditions to a position or positions forward of the detached bridge, or forward of the poop in cases where there is no detached bridge and the crew accommodation and machinery spaces are situated at the after end of the ship, access to such positions shall be by means require under sub-paragraph (2) of this paragraph: 

            Provided that in the case of a ship the hatchway coamings of which are 600 millimetres or more in height from the deck, two walkways giving access to the said positions and complying with the following requirements may be provided ; namely :- 

(i)         the walkways shall be efficiently constructed and of satisfactory strength ; 

(ii)         the walkways shall each be at least 1 metre in width and shall be fitted on the freeboard deck alongside the outboard structure of batchway coamings, one to port and the other to starboard of the hatchways; 

(iii)        each walkway shall be fitted on the side cutboard of the batchways with guard rails or guard wires complying with the requirements set out in relation to such wires or rails in paragraph 20(4)(b). 

24.        Freeing arrangements – The ship shall comply with the requirements of paragraph 22 of this Schedule. 

PART V
Special Conditions of Assignment for Ships with Timber Freeboard 

25.        Superstructure –(1) The ship shall have a forecastle of not less than the standard height  of an enclosed superstructure and a length of not less than 0.07 L. 

(2)        If the ship is less than 100 metres in length it shall be fitted with a poop of not less than standard height or a raised quarter deck having either a deckhouse or a strong steel hood, so that the total height thereof is not less than the standard height of an enclosed superstructure. 

26.        Double bottom tanks—Double bottom tanks where fitted within the mid ship  half-length of the ship shall have satisfactory watertight longitudinal sub-division. 

27.        Bulkwark and tanks – (1) The ship shall be fitted with either permanent bulkwark at least 1 metre in height, especially stiffened on the upper edge and supported by strong bulkwark stays attached to the deck and provided with freeing ports complying with the requirements of paragraph 17 of this Schedule. 

(2)        Efficient guard rails and stanctions at least 1 metre in height, of specially strong construction and complying with the requirements of paragraph 18(2)  

       THE SECOND SCHEDULE
(See rules 4,5,6, 28 and 29)

         FREE BOARDS
PART I
General 

            1.         Application—(1) Except as otherwise provided in sub-paragraphs (2) and (3), the freeboards to be assigned to a ship other than Timber freeboards shall be determined in accordance with the provisions of Part II of this Schedule, and Timber freeboards to be assigned to a ship shall be determined in accordance with Part III. 

            (2)        Freeboards determined as described in sub-paragraph (1) are the freeboards appropriate to ships the structural strength of which complies with the highest standard required by an Assigning Authority; and the freeboard to be assigned to ships the structural strength of which does not comply with that standard shall be freeboards so determined but increased in each case by such amount as the Assigning Authority with the approval of the Director General may determine as appropriate to the ship's structural strength. 

            (3)        Tabular freeboards appropriate to the ship's length are set out in Freeboard Table A for ships and Freeboard Table B for Type B ships in Part V of this Schedule. 

            (4)        The freeboards to be assigned to tugs and unmanned barges having as the freeboard deck only small access closed watertight or ships with unusual constructiona features shall be determined in accordance with provisions of Part IV of this Schedule. 

PART II
reeboards other Timber Freeboards 

            2.         Computation of Freeboards: (1) The Summer freeboard shall be determined in accordance with the provisions of paragraphs 3 and 4 of this Schedule : 

            Provided that the freeboard so obtained but without any correction made for the deck line as provided in paragraph 6 shall not be les than 50 millmetres except in case of a ship having in position 1 hatchways which do not comply with the requirements of paragraphs 8(4), 9 or 21 of the first Schedule, in which case the freeboard shall not be less than 150 millimetres.  (2) The Tropical freeboard shall be obtained by deducting from the Summer freeboard applicable to the ship one forty-eight (1/48^th) of the summer draft of the ship : 

            Provided further that the freeboard so obtained but without any correction made for the decline as provided in paragraph 6 shall not be less than 50 millimetres except in case of a ship having in Position 1 hatchways with covers which do not comply with the requirements of paragraphs 8(4), 9 or 21 of First Schedule, in which case the freeboard shall not be less than 150 millimetres. 

            (3)        The Winter Freeboard shall be obtained by adding to the Summer freeboard applicable to the ship one forty-eighth (1/48^th) of the summer draft of the ship. 

            (4)        For ship not more than 100 metres in length, the Winter North Atlantic freeboard shall be obtained by adding 50 millimetres to the Winter freeboard applicable to the ship.  For other ships, the Winter North Atlantic freeboard shall be the winter freeboard. 

(5)(a)     The Fresh Water freeboard shall, subject to sub-paragraph (b), be obtained by deducting from the summer freeboard the quantity-- 

           _____
4T Millimetres 

where       is the displacement in salt water in metric tons at summer load waterline and T represents metric tons per centimetre immersion in salt water at that waterline. 

            (b)        In any case in which the displacement at that waterline cannot be ascertained the deduction shall be one-forty-eighth (1/48^th) of the summer draft of the ship. 

            3.         Summer Freeboard for Type A ships --- The summer freeboard for Type A ship shall be determined as follows : 

(1)(a)                 There shall first be ascertained the Tabular Freeboard appropriate to the ship's length. 

(b)              For ships having black co-efficient (Cb) of not exceeding than 0.68, the basic freeboard shall be tabular freeboard and for ships having black coefficient (Cb) exceeding 0.68, the basic freeboard shall be obtained by multiplying the Tabular freeboard by the factor             (CB – 0.68)
    1.36 

            (2)        The basic freeboard shall then be duly corrected in accordance with the requirements of paragraphs 5 to 14 of this Schedule. 

            (3)        Subject to the proviso to paragraph 2(1), the basic freeboard so corrected shall be the summer freeboard to be assigned to the Type A ship. 

4.         Summer Freeboard for Type B ships. --- The summer freeboard for Type B ship shall be determined as follows: 

(1)        There shall first be ascertained the Tabular freeboard appropriate to the ship's length. 

(2)(a)     If the ship has hatchways in Position 1, the covers of which comply with the requirements of paragraph 8(4) or with those of paragraph 9 of the First Schedule the tabular freeboard may be corrected in accordance with such of the provisions of sub-paragraphs (3) to (7) of the paragraphs as are applicable to the ship. 

(2)(b) If the ship ahs hatchways in Position 1, the covers of which comply with the requirements of paragraph 8 of the First Schedule with the exception of sub-paragraph (4) of that paragraph, the tabular freeboard shall b corrected, in accordance with the provision of Sub-paragraph (8) of this paragraph. 

(3)        The tabular freeboard of a ship to which sub-paragraph (2)(a) applies and which exceeds 100 metres in length may be reduced by an amount prescribed in sub-paragraph (4), if the assigning authority is satisfied that-- 

(a)        the gangway and access are in accordance with paragraph 20 of the First Schedule; 

(b)        the measures for the protection of the crew comply with the requirements of paragraph 18 of First Schedule; 

(c)        the freeing arrangements comply with the requirements of paragraph 17 of First Schedule;

(d)        all covers of hatchways in Positions 1 and 2 comply with the requirements of paragraph 9 of First Schedule; 

(e)        the ship when loaded to the Summer load waterline will remain afloat, after the flooding of any single damaged compartment other than the machinery space at an assumed permeability of 0.95 in the condition of equilibrium described in sub-paragraph (6) ; 

Provided that if the length of the ship exceeds 225 metres the machinery space shall rank as a floodable compartment with an assumed permeability of 0.85 for the purposes of this requirement. 

(4)        Subject to sub-paragraph (5), reduction of freeboard pursuant to sub-paragraph (3) shall not exceed 60 per cent of the difference between the Tabular freeboards appropriate to the ship's length under Freeboard Table A and Freeboard Table B. 

(5)        The reduction of 60 per cent referred to in the preceding paragraph may be increase to 100 per cent if the assigning authority is satisfied that-- 

(a)        the ship complies with the requirements of paragraphs 19 and 22 of the First Schedule as if it were a Type A ship ; 

(b)        the ship complies with the requirements of sub-paragraph 3(a) to (d); and  

(c)        the ship when loaded to the summer load waterline; and 

(i)         After the flooding of any two compartments adjacent fore and aft, neither of which is the machinery space, at an assumed permeability of 0.95 and also;  

(ii)         in the case of a ship exceeding 225 metres in length, after the flooding of the machinery space along, at an assumed permeability of 0.85, 

will remain afloat in the conditions of equilibrium described in sub-paragraph (6). 

(6)        The condition of equilibrium referred to in sub-paragraphs (3) and (5) above; is as follows : 

(a)        the final waterline after flooding is below the top of any ventilator coaming the lower edge of any air pipe opening, the upper edge of the sill of any access opening fitted with a watertight door, and the lower edge of any other opening through which progressive flooding may take place ;

(b)        the angle of heal due to unsymmetrical flooding does not exceed 15 degrees. 

(c)        the metacentric height calculated using the constant displacement method has a positive value of at least 50 millimetres in the upright condition after flooding; and 

            (d)        the ship has adequate residual stability. 

(7)        The following assumptions shall be made for the purposes of calculation pursuant to sub-paragraphs (3)(d) and 5(c)-- 

(a)        that the vertical extent of damage is equal to the depth of the ship at the point of damage, measured from the including the freeboard deck to the underside of the keel as ship side; 

(b)        that the transverse penetration of damage is not more than one fifth of the breadth of the ship (B), this distance being measured in board from ship side to the center line of the ship at the level of the summer load waterline: 

Provided that if damage of a lesser extent results in a more severe condition, such lesser extent shall be assumed; 

(c)        that, except in the case of compartments referred to in sub-paragraph (5)(c)(i) no main transverse bulkhead is damaged; 

(8)        The tabular freeboard of a ship to which sub-paragraph (2) (b) of this paragraph applies shall be increased by the amount shown by the following Table to the appropriate ship's length--- 

TABLE

Length of ship                    Freeboard increase            Length of ship            Freeboard increase
(metres)                               (millimeters)                      (metres)                  (Millimetres)

____________________________________________________________________________________

 108 and below                                       50                                 113                               62

            109                                           52                                 114                               64

            110                                           55                                 115                               68

111                                           57                                 116                               70

112                                           59                                 117                               73

113                                           62                                 118                               76 
 

Length of ship                    Freeboard increase            Length of ship            Freeboard increase
(metres)                               (millimeters)                      (metres)                  (Millimetres)
___________________________________________________________________________________

119                                                       80                                 160                   264

120                                                       84                                 161                   267

121                                                       87                                 162                   270      

122                                                       91                                 163                   273

123                                                       95                                 164                   275

124                                                       99                                 165                   278

125                                                       103                               166                   280

126                                                       108                               167                   283

127                                                       112                               168                   285

128                                                       116                               169                   287

129                                                       121                               170                   290

130                                                       126                               171                   292

131                                                       131                               172                   294

132                                                       136                               173                   297

133                                                       142                               174                   299

134                                                       147                               175                   301

135                                                       153                               176                   304

136                                                       159                               177                   306

137                                                       164                               178                   308

138                                                       170                               179                   311

139                                                       175                               180                   313

140                                                       181                               181                   315

141                                                       186                               182                   318

142                                                       191                               183                   320

143                                                       196                               184                   322

144                                                       201                               185                   325

145                                                       206                               186                   327

146                                                       210                               187                   329

147                                                       215                               188                   332

148                                                       219                               189                   334

149                                                       224                               190                   336

150                                                       228                               191                   339

151                                                       232                               192                   341

152                                                       236                               193                   343

153                                                       240                               194                   346

154                                                       244                               195                   348

155                                                       247                               196                   350

156                                                       251                               197                   353

157                                                       254                               198                   355

158                                                       258                               199                   357

Freeboard at intermediate length shall be obtained by liner interpolation.  The increase in the case of ships of more than 200 metres in length shall be such amount as the Director General may determine in each particular case. 

(9)(a)     This sub-paragraph applies to every Type B ship of not more than 100 metres in length having enclosed superstructures the total effective length of which does not exceed 35 per cent of the ship's length (L). 

(9)(b)     The freeboard calculated in respect of such a ship in accordance with sub-paragraphs (1), (2) and (3) above shall be increased by an amount ascertained in accordance with the formula 

75 (100 – L) (0.35 – E ) millimeters.
                  L

(10)       In the case of a ship the block co-efficient (Cb) of which exceeds 0.68 the freeboard calculated in respect of the ship in accordance with sub-paragraph (1) to (9) above shall be multiplied by the factor. 

                                                Cb  + 0.68
                                          1.36 

(11)       The basic freeboard of a Type B ship is that calculated in accordance with sub-paragraphs (1) to (10) above.  The basic freeboard duly corrected in accordance with paragraphs 5 to 14 of this Schedule but subject to the proviso to paragraph 2(1) 

5.         Correction for depth --- (1) If the depth for freeboard D exceeds  R(d-L)5"  the free
                                                                                                                          15
 board shall be increased by (   L  )
D15     

millimeters where R is  L   at lengths les than 120 metre    
                               0.48

and 250 at 120 metres length and above.

(2)        If the depth for freeboard D is less than   L__ , no
                                                          15

reduction shall be made except in a ship with an enclosed superstructure covering at least 0.6L amidships, with a complete trunk, or combination of detached enclosed super-structures and trunks which extend all fore and aft, where the freeboard shall be reduced at the rate prescribed in sub-paragraph (1) above. 

(3)        Where the height of superstructure of trunk is less than the standard height, the reduction shall be in the ratio of the actual to the standard height as defined in paragraph 7 below. 

Standard Superstructure and correction 

7.         Standard height, length and effective length of superstructures :-- (1) The standard height of a superstructure shall be the height appropriate to the ship's length L determined in accordance with the following Table :

 Ships Length                 Standard                                         Height (metres)

30 or less                                  0.90                                                      1.80

75                                             1.20                                                      1.80

             Standard heights for intermediate length of ship shall be obtained by liner interpolation. 

(2)(a)     Subject to sub-paragraphs (b) and (C) , the length of a superstructure(s)  shall be the mean length of the parts of the superstructure which lie within the length of the ship (L). 

(2)(b)     In the case of an enclosed superstructure having an end bulkhead which extends in a fair convex curve beyond its intersection with the superstructure sides, the length of the superstructure (s) may be taken as its length ascertained in accordance with sub-paragraph (a) increased on the basis of an equivalent plane bulkhead by the amount of two-thirds of the fore and aft extent of the curvature : 

            Provided that the amount of the curvature to be taken into account shall not exceed one balf the breadth of the superstructure at the point of intersection of the curved end of the superstructure with its side 

(2)(c)     In the case of an enclosed superstructure having an extension from an end bulkhead, which extension has a breadth on each side of the center line a t least 30 per cent of the breadth of the ship, the length of the superstructure (s) may be ascertained in accordance with sub-paragraph  (B) by assuming an equivalent end bulkhead in the form of parabole which is completely contained within such a superstructure and the extension thereto. 

(3)        The effective length of a superstructure (E) shall be as follows :-           

(a)        Subject to sub-paragraph (C), E in the case of an enclosed superstructure of standard height shall be either 

                        (i)         its length S, or

(ii)                 if the superstructure is set in from the sides of the ship, its length S modified in the ratio b/Bs, where--- 

'b' is the breadth of the superstructure at the middle of its length , and  

'Bs' is the breadth of the ship at the middle of the length of the superstructure (s)

Provided that if the superstructure is so set in fore part of its length, such modification shall be applied only to that part, 

(b)        Subject to sub-paragraph (c), E in the case of an enclosed superstructure of less than standard height shall be its length S reduced in the ratio of the actual height of the superstructure to its standard height.                       

(c)        E in the case of an enclosed superstructure consisting of a raised quarter deck shall, if the deck is fitted with an intact front bulkhead be its length S subject to a maximum of 0.6L; and if not so fitted, be ascertained by treating the raised quarter deck as a poop of less  than standard height. 

(d)        A superstructure which is not an enclosed superstructure shall have no effective length. 

            8.         Standard height and effective length of trunk – (1) The standard, height of a trunk shall be determined in the same manner as that applicable to a superstructure other than a raise quarter deck under paragraph 7(1) 

            (2)        The effective length of a trunk shall be determined as follows -- 

(i)         A trunk which is not an efficient trunk as described in sub-paragraph (3) shall have no effective length; 

(ii)         Except as provided in sub-paragraph (iii), the effective length of an efficient trunk shall be its full length reduced in the ratio of its mean breadth to the breadth  

(iii)        If the actual height of an efficient trunk is less than the standard height, its effective length shall be the length calculated in accordance with sub-paragraph (ii) reduced in the ratio of the actual to the standard height of the trunk.  In addition if the ship is a Type B ship and the height of the hatchway coamings of the trunk deck is less than that required by paragraphs 8(1) or 9(1) of the First Schedule, a reduction from the actual height of the trunk shall be made of an amount corresponding to the difference between the actual height of such coamings and the height so required for them. 

(3)        A trunk shall be treated as an efficient trunk subject to complying with the following conditions, namely :- 

(i)         that it shall be as strong as an efficient trunk subject to superstructure;

(ii)                 that the hatchways in way of the trunk are in the trunk deck, and the hatchway coamings and covers comply with the requirements of paragraphs 7 to 9 of the First Schedule ;

(iii)                that the Width of the trunk deck stringer in way of the hatches provides a satisfactory gangway and sufficient lateral stiffness ;

(iv)                that a permanent working platform fore and aft fitted with guard rails or guard wire complying with the requirements applicable thereto under paragraph 20(4)(b) of the First Schedule is provided by the trunk deck or by detached trunks connected to superstructures by efficient permanent gangways ;

(v)                  that the ventilators are protected by the trunk by watertight covers or by equivalent means ;

(vi)                that open rails or wires are fitted on the weather parts of the freeboard deck in way of the trunk for at least half their length.

(vii)               that the machinery casings are protected by the trunk, or by an enclosed superstructure of at least standard height or by a deckhouse of the same height and of strength and weathertightness equivalent to those of such a superstructure ;

(viii)             that the breadth of the trunk is lat least 60 per cent of the Breadth of the ship B;

(ix)               that where there is no superstructure, the length of the trunk is at least 9.6L. 

9.         Deduction for superstructure and trunks :-- (1) Where the effective length of superstructures and trunks of a ship is 1.0(L), the basic freeboard of the ship shall be reduced by an amount determined appropriate to the Ship's length in accordance with the following Table, namely :-

 TABLE  

____________________________________________________________________

Length of a ship                                     Reduction in freeboard
L (metre)                                                       millimetre

_____________________________________________________________________

             24                                                             350

             85                                                             860

122                                                          1070

____________________________________________________________________ 

            The reduction in freeboard for intermediate lengths of ships shall be obtained by interpolation. 

(2)        Where the effective length of superstructure and trunks is less than 1.0(L) the basic freeboard of a ship shall be reduced as follows : 

(a)     in the case of a Type 'A' ships Total effective length of superstructure and trunk by a percentage determined from the following Table, the percentage in the case of a ship having superstructures and trunks of an effective length intermediate to those specified in the Table being obtained by liner interpolation--- 

TABLE

Percentage of deduction for type A ships

Total effective length of superstructure and trunks

______________________________________________________________________________________

            0   0.1L   0.2L   0.3L   0.4L   0.5L   0.6L   0.7L  O.8L   0.9L   1.0L

_____________________________________________________________________________________

 Percentage

of deduction

for all types of

superstructures  0   7       14       21     31      41      52     63       75.3   87.7   100

___________________________________________________________________________________

(b)        in the case of a Type B ship, by a percentage determined from the following Table and to such of directions (i) to (iii) appended thereto as apply in the circumstances, the percentage in the case of a ship having superstructures and trunks of an effective length intermediate to those specified in the Table being obtained by linear interpolation.

TABLE

Percentage of deduction for type A ships

Total effective length of superstructure and trunks

____________________________________________________________________________________

Line                  0   0.1L   0.2L   0.3L   0.4L     0.5L    0.6L   0.7L   O.8L    0.9L     1.0L

_________________________________________________________________________________

Ships with
forecastle
and
without
detached
bridge              I  0   5       10        15     23.5      32      46     63       75.3    87.7    100

_________________________________________________________________________________

Ships with
forecastle
and
without
detached
bridge               II 0   6.3    12.7     19     27.5      36      46     63       75.3   87.7   100

________________________________________________________________________________

 (i)         where the effective length of a bridge covers less than 0.1L before and 0.L abaft amidships the percentages shall be obtained by liner interpolation; 

(ii)         Where the effective length of a forecastle is more than 0.4L, the percentages shall b e obtained form line II ; 

(iii)        Where the effective length of forecastle is less than 0.07L, the above percentages shall be reduced by 5 x (0.07L – f) where f is the effective length of the forecastle,                               0.07L

10.        Measurement of sheer :- (1) The sheer shall be measured form the deck at side of a line of reference drawn parallel to the keel through the sheer line at amidships. 

(2)        In ships designed with a rake of keel, the sheet shall be measured in relation to a be measured at the freeboard deck. 

(3)        In flush deck ships and in ships with detached superstructures, the sheer shall be measured at the freeboard deck. 

(4)        In ships with topsides of unusual form in which there is a step or break in the topsides, the sheer shall be considered in relation to the equivalent depth amidship. 

(5)        In ships with a superstructure of standard height which extends over the whole length of the freeboard deck, the sheer shall be measured at the superstructure deck. Where the height exceeds the standard the least difference (z) between the actual and the standard heights shall be added to each end ordinate.  Similarly, the intermediate ordinates at distance of 1/6 L and 1/3 L from each perpendicular shall be increased by 0.444Z and 0.111Z respectively. 

(6)        Where the deck of an enclosed superstructure has at least the same sheer as the exposed freeboard deck, the sheer of the enclosed portion of freeboard deck shall not be taken into account. 

(7)        Where an enclosed poop or forecastle is of standard height with greater sheer than that of the freeboard deck, or is of more than standard height, an addition to the sheer of the freeboard deck shall be made as provided in paragraph 12(4). 

            11.        Standard sheer profile – The ordinate of the standard sheer profile given in the following Table; namely :-

__________________________________________________________________________

                         Station                           Ordinate (in milimeters)     Factor 

__________________________________________________________________________

            After perpendicular         .           .           25( L +10 )                1        
                                                                  3

After Half           1/6 L from A.P.  .           .            11.1( L +10 )                         3
                                                                                   3

1/3 L from A.P.  .           .           2.8( L +10 )                            3
                                                                   3

                         Amidships         .           .           .                  0                           1

______________________________________________________________________________________

Amidships         .           .           .                  0                            1

Forward Half      1/3 L from F.P.  .           .                     5.6( L +10 )                      3
                                                                                        3

1/6 L from A.P.  .           .           22.2( L +10 )                              3
                                                                    3

Forwarded perpendicular .           50( L +10 )                                1
                                                                    3

                                                                                      __________________________________________________________________________

             12.        Measurement of variation from standard sheer profile :- (1) Where the sheer profile differs from the standard, the four ordinates of each profile in the forward or after half shall be multiplied by the appropriate factors given in Table of ordinates.  The difference between the sums of respective products and those of the standard divided by 8 measures the deficiency or excess of sheer in the forward or after held.  The arithmetical mean of the excess or deficiency in the forward and after halves measures the excess or deficiency of sheer. 

(2)        Where the after half of the sheer profile is greater than the standard and the forward half is less than the standard, no credit shall be allowed for the part in excess and deficiency only shall be measured. 

(3)        Where the forward half of the sheer profile exceeds the standard sheer profile and the after half of the sheer profile is not less than 75 per cent of standard sheer profile, credit shall be allowed for the part in excess. 

Where the after half of the sheer profile is less than 50 per cent of the standard sheer profile, no credit shall be given for the excess sheer forward. 

Where the sheer in the after half is between 50 per cent and 75 per cent of the standard sheer profile, intermediate allowances may be granted for excess sheer forward. 

(4)        Where the sheer credit is given for a poop or forecastle the following formula shall be used :

        S = Y                L'
   3                L

Where S= sheer credit, to be deducted from the deficiency or added to the excess of sheer. 

Y = difference between actual and standard height of superstructure at forward and after perpendicular. 

L' =  mean enclosed length of poop or forecastle up to a maximum length of 0.5L. 

            The above formula provides a curve in the form of a parabola tangential to the actual sheer curve at the freeboard deck and intersecting the end ordinate at a point below the superstructure deck a distance equal to the standard height of a superstructure.  The superstructure deck shall not be less than standard height above the curve at any point.  This curve shall be used in determining the sheer profile for the forward and after halves of the ship. 

13.        Correction for variations from standard sheer :- (1) The correction for sheer shall be the deficiency or excess of sheer determined by paragraph 12 multiplied by ( 0.75 = S/2L) 

(2)        Where the sheer is less than the standard, the correction for deficiency of sheer determined in accordance with sub-paragraph (1) shall be added to the basic freeboard of the ship. 

(3)        subject to sub-paragraph (4), in the case of a ship having an excess of sheer - 

(a)        if an enclosed superstructure covers (0.1) L before and (0.1) L abaft amid ships, the correction for excess of sheer determined in accordance with sub-paragraph (1) shall be deducted from the basic freeboard of the ship; 

(b)        if no enclosed superstructure covers amidships, no deduction shall be made from the basic free board of the ship; 

(c)        if an enclosed superstructure covers less than (0.1) L before and (.01) L abaft, amidships, the correction for excess of sheer determined in accordance  with sub-paragraph (1) shall be modified in the ratio of the amount of (0.2) L amidships which is covered by the superstructure to (0.2)L.

(4)        The maximum deduction for excess sheer shall be at the rate of 125 millimetres per 100 metres of length (L). 

(14)       Correction for Minimum Bow Height :- (1) The bow height of a ship is the vertical distance at the forward perpendicular between the summer load waterline of the ship at the designed trim and the top of the exposed deck at side ascertained as follows : 

(a)        Where the bow height is obtained by including sheer, the sheer shall extend for not less than 15 per cent of the ship's length (L) measured from the forward perpendicular; 

(b)        Where the bow height is obtained by including the height of the superstructure, such superstructure shall : 

(i)         extend from the stem to a point not less than 0.07 of ship's length (L) measured from the forward perpendicular; 

(ii)         if the ship's length (L) is 100 meters or less, be an enclosed superstructure;                       

(iii)        if the ship's length (L) exceeds 100 metres in length, be fitted with satisfactory closing appliances. 

(2)        The minimum bow height for a ship shall be derived from formula 1 in the case of a ship of less than 250 metres in length (L) and from formula 2 in the case of Formula 1 

     56 ( 1 (L) )  (    1.36         ) millimetres
 500          Cb + 0.68

Formula 1 

      7000     (    1.36         ) millimetres
       Cb + 0.68

             CB being taken as not less than 0.68 in the case of each formula. 

            Provided that in the case of a ship other than a tug of 65 metres or less in length being based at a port or an open readstead and carrying out ship to shore service, the bow height may be obtained from formula 1 with the figure 56 being replaced by figure 40. 

            (3)        Where the bow height of a ship is less than the minimum bow height appropriate to the ship, the freeboard determined in accordance with the foregoing paragraphs shall be increased by an amount equal to the difference between the bow height and the minimum bow height : 

(a)        Provided, however, in the case of ship which I constructed to meet exceptional operation requirements, the corrections to be made pursuant to this sub-paragraph may be reduced or waived if the Director General is satisfied that the safety of the ship will not be impaired in consequence in the worst sea and weather conditions likely to be encountered by the ship in service.

            (4)        Where an existing ship has been so reconstructed as to comply with all the conditions of assignments in the first Schedule as applicable to a new ship but having.                       

(i)         the forecastle of length less than 0.70(L) ; and/or 

(ii)         the sheer extending over less than 15 per cent of the ship's length measured from the forward perpendicular, 

the freeboard determined for the ship in accordance with the foregoing paragraph shall be increased by such amount as the Director General may approve in each particular case. 

PART III 

Timber Freeboard 

            15.        Summer timber freeboard :- (1) There shall first be ascertained the freeboard appropriate to the ship under the provisions of sub-paragraphs (1), (2) (A), and (9) to (10) of paragraph 4, corrected as necessary in accordance with the provisions of paragraphs (5 to 8 of this Schedule).

            (2)        Deduction for the effective length of superstructures shall be made from the freeboard obtained pursuant to sub-paragraph (1) in accordance with paragraph 9(1) and 9(2)(b) but substituting the following table for the Table 'Percentage of Deduction for Type B ships'. 

 Total Effective Length of Superstructure

______________________________________________________________________________________

Line                  0   0.1L   0.2L   0.3L   0.4L     0.5L    0.6L   0.7L   O.8L    0.9L     1.0L

_____________________________________________________________________________________

 Percentage
of deduction
for all types
of superstruc-
tures     .           20   31     42      53    64        70       76      82      88       94        100

______________________________________________________________________________________

            Percentage at immediate lengths of superstructures shall be obtained by liner interpolation.

            (3)        The freeboard so far obtained pursuant to the preceding sub-paragraphs shall then be corrected in accordance with paragraphs 10 to 13 of this Schedule, and the freeboard so corrected shall be the Summer Timber Freeboard to be assigned to the ship. 

            16.        Other timber freeboards :- (1) The Winter timber freeboard shall be obtained by adding to the Summer timber free board one thirty sixth (1/36^th) of the summber timber draught of the ship. 

            (2)        The Winter North Atlantic Timber freeboard shall be same as the Winter North Atlantic Freeboard assigned to the ship. 

            (3)        The Tropical timber freeboard shall be obtained by deducting from the summer timber freeboard one forty eight (1/48^th) of the summer timber draught of the ship. 

            (4)(a)     The Fresh Water Timber freeboard shall, subject to sub-paragraph (b), be obtained by deducting from the Summer Timber freeboard the quantity-- 

t    millimeters.

4T

             Where t is the displacement in salt water in metric tons at the waterline which will when load lines have been marked on the ship's side correspond to the Summer Timber load line, and T represents metric tons per centimetre immersion in salt water at that waterline. 

            (b)        In any case in which the displacement at the waterline cannot be ascertained the deduction shall be one forty eighth (1/48^th) of the summer timber draught of the ship. 

PART IV
Freeboard for other ships 

            17.        Tugs :- The freeboard to be assigned to tugs shall be freeboards determined in accordance with provisions of Part II of this Schedule increased by such amounts as the Director General may direct in each case. 

            18.        Unmanned barges :-       The freeboard to be assigned to unmanned barges having on the freeboard deck only small access openings closed by watertight gasketed covers of steel shall be freeboards determined in accordance with provisions of Part II of this Schedule omitting paragraph 4. 

            19.        Ships with special construction features :- The freeboard to be assigned to ships with constructional features such as to render freeboard calculated in accordance with the other Parts of this Schedule unreasonable or impracticable shall be especially determined by the Director General in each particular case. 

            20.        Conditions for assigning freeboards less than minimum freeboard – The Director General of Shall consider applications for the assignment of a freeboard reduced to 5/8 (Table B), ½ (Table B-60) or ½ (Table B-100) subject to a minimum freeboard of 150 mm (6 inches) and to the following conditions, namely:-- 

(a)                 The strength of the ship shall be adequate at the draught associated with the decreased freeboard;

(b)                 The ships shall be of the "hopper" type, i.e. fitted with bottom doors in the shell or having other similar means capable of quickly jettisoning the cargo u9nder all sea-going conditions and in an emergency.  The cargo releasing arrangements on ships assigned a freeboard less than 5/8 (Table B) should be capable of jettisoning sufficient cargo within 4 minutes to enable the requirements of sub-paragraph (e) below to be complied with.  In each case details of the arrangements are to be submitted for examination and approval.

(c)                 The operational limits shall not normally exceed 20 miles from land.

(d)                 The intact stability criteria specified in Part I of the Third Schedule should be achieved at the proposed decreased freeboard.

(e)(i)      When a freeboard equivalent to ½ (Table B-60) is assigned, the ship shall be capable of surviving in a manner stated in paragraph 4(3)(e) of Part II of Second Schedule after sustaining damage, to the total extent indicated in paragraph 4(6) of Part II of the Second Schedule to any one compartment (including the engine room).

(ii)      When a freeboard equivalent to ½ (Table B-100) is assigned, the ship shall be capable of surviving in a manner specified in paragraph 4(5)(c) of Part II of the Second Schedule after sustaining damage, to the total extent indicated in paragraph 4(7)(a), 4(7)(C) of Part II of the Second Schedule to the engine room or to any other two adjacent fore and aft compartments.  

Note :-  In the damage stability calculation it may be assumed that a proportion of the cargo is capable of being jettisoned immediately after the collision provided the cargo releasing arrangements are so designed that they will operate after the ship has sustained the total assumed damage. 

(f)         Draught indicators shall be fitted to ships requiring freeboards of ½ (B-60) or less.

(g)        A special working load line mark in RED shall be marked on ship sides with disc 762 mms abaft normal marks, in all such cases.           

            21.        Existing ships from 24 metre to 100 metres in length—Ships of length range 24 to 100 metres, engaged in harbour maintenance, dredgers, hoppers, barges, tugs and crafts engaged in service between ship and shore, or for domestic voyages along with coasts of India may continue to be assigned free boards, under the Indian Merchant Shipping (Load Line) Rules, 1934 :           

            Provided that,

(i)         the conditions of assignment, more particularly the ones relating to hatch closing appliances, are brought up to the requirements of these rules as far as is reasonable and practicable ; and 

(ii)         no increase in the summer draught corresponding to a decrease in the geometric freeboards is made under the terms of these rules. 

            22.        Minimum bow height of coastal ships below 60 metres in length --- Ships engaged on the coasting trade of India lf less than 60 metres in length performing voyages during the course of which they are at no time more than 20 miles from the nearest land shall be required to have a minimum bow height which shall not be less than the aggregate of the tabular freeboard and the standard sheer at the forward perpendicular applicable to the ship : 

            Provided that the Director General may dispense with the requirement of minimum bow height where exceptional operational requirements are involved. 

PART V  

Tabular Freeboard 

The following is Freeboard Table A  referred to in sub-paragraph (3) of paragraph 1 of Part I of this Schedule 

TABLE A
FREEBOARD TABLE FOR TYPE "A" SHIPS