Load_Line_Technical_Manual.pdf

This copy of the "Load Line Technical Manual" has been annotated to reflect the 2005 revisions to the International Convention on

Load Lines (ICLL). Except where stated otherwise, all ICLL revisions apply to new U.S. vessels (i.e., keels laid on/after 1 January

2005) that are seeking either an international (ICLL) or unrestricted domestic (US) load line certificate.

Load Line Technical Manual

Preface to the electronic version

November 6, 2003

In 1990, the U.S. Coast Guard commissioned the American Bureau of Shipping (ABS) to prepare a report that integrated U.S. load line regulations & policies, ABS and IACS interpretations, IMO circulars, and the International Convention on Load Lines (ICLL) into a single reference document.

This “Load Line Technical Manual” is the result of that effort. It sets forth the technical procedures for evaluating, calculating and assigning ICLL load lines, using USCG and ABS policies where the

Convention leaves certain requirements “to the satisfaction of the Administration” or is open to interpretation. This manual applies to U.S. vessels seeking an international ICLL assignment or a domestic U.S. load line assignment for unrestricted voyages by sea; it does not cover U.S. load line regulations for other types of domestic voyages (such as coastwise or Great Lakes).

This electronic version of the manual has been divided into five Adobe .pdf files:

LL Tech Manual-ToC.pdf Table of Contents

LL Tech Manual-Ch1.pdf Chapter I, General Items

LL Tech Manual-Ch2.pdf Chapter II, Load Line Calculation

LL Tech Manual-Ch3.pdf Chapter III, Cond of Assignment-Minimum Freebrd

LL Tech Manual-Ch4.pdf Chapter IV, Cond of Assignment-Increased Freebrd

This Technical Manual was originally prepared in 1990; therefore, it only incorporates material up to that time. Since then, there has been further evolution of load line policies, additional IACS interpretations, new IMO Circulars, etc. The ICLL itself has been amended by the 1988 Protocol (which entered into force on February 3, 2000) as well as subsequent amendments that were adopted in 2003 (and will enter into force on 1 January 2005). There are no immediate plans to incorporate these into this manual.

Preface to the annotated version

February 3, 2006

On January 1, 2005, numerous new and revised ICLL regulations entered into force, adding new technical requirements or expanding existing requirements to encompass shipboard arrangements not previously addressed. The amendments also incorporate (wholly or partially) more than 35 IACS Unified

Interpretations on the Load Line Convention.

In response to these revisions, this annotated version of the Load Line Technical Manual has been corrected, but not updated. Annotations have been inserted only where the ICLL revisions have affected the original LLTM discussion or policy (the affected text is boxed). However, there are many other ICLL revisions that are not indicated in this annotated version. Readers are advised to consult an officially-published copy of the ICLL in conjunction with this annotated version. IMO publications can be ordered via the IMO website at www.imo.org.

Unless stated otherwise in this annotated version, all revisions apply to new U.S. vessels (the keels of which were laid on/after January 1, 2005) seeking an international (ICLL) or unrestricted domestic (US) load line certificate.

Future annotations will be added whenever revised ICLL regulations affect the technical content of this

Manual.

The Table of Contents for each chapter have been annotated to indicate sections that are affected by the 2005 ICLL revisions.

This copy of the "Load Line Technical Manual" has been annotated to reflect the 2005 revisions to the International Convention on

Load Lines (ICLL). Except where stated otherwise, all ICLL revisions apply to new U.S. vessels (i.e., keels laid on/after 1 January

2005) that are seeking either an international (ICLL) or unrestricted domestic (US) load line certificate.

Annotated

Annotated

November 6, 2003

In 1990, the U.S. Coast Guard commissioned the American Bureau of Shipping (ABS) to prepare a report that integrated U.S. load line regulations & policies, ABS and IACS interpretations, IMO circulars, and the International Convention on Load Lines (ICLL) into a single reference document.

This “Load Line Technical Manual” is the result of that effort. It sets forth the technical procedures for evaluating, calculating and assigning ICLL load lines, using USCG and ABS policies where the

Convention leaves certain requirements “to the satisfaction of the Administration” or is open to interpretation. This manual applies to U.S. vessels seeking an international ICLL assignment or a domestic U.S. load line assignment for unrestricted voyages by sea; it does not cover U.S. load line regulations for other types of domestic voyages (such as coastwise or Great Lakes).

This electronic version of the manual has been divided into five Adobe .pdf files:

LL Tech Manual-ToC.pdf Table of Contents

LL Tech Manual-Ch1.pdf Chapter I, General Items

LL Tech Manual-Ch2.pdf Chapter II, Load Line Calculation

LL Tech Manual-Ch3.pdf Chapter III, Cond of Assignment-Minimum Freebrd

LL Tech Manual-Ch4.pdf Chapter IV, Cond of Assignment-Increased Freebrd

This Technical Manual was originally prepared in 1990; therefore, it only incorporates material up to that time. Since then, there has been further evolution of load line policies, additional IACS interpretations, new IMO Circulars, etc. The ICLL itself has been amended by the 1988 Protocol (which entered into force on February 3, 2000) as well as subsequent amendments that were adopted in 2003 (and will enter into force on 1 January 2005). There are no immediate plans to incorporate these into this manual.

Preface to the annotated version

February 3, 2006

On January 1, 2005, numerous new and revised ICLL regulations entered into force, adding new technical requirements or expanding existing requirements to encompass shipboard arrangements not previously addressed. The amendments also incorporate (wholly or partially) more than 35 IACS Unified

Interpretations on the Load Line Convention.

In response to these revisions, this annotated version of the Load Line Technical Manual has been corrected, but not updated. Annotations have been inserted only where the ICLL revisions have affected the original LLTM discussion or policy (the affected text is boxed). However, there are many other ICLL revisions that are not indicated in this annotated version. Readers are advised to consult an officially-published copy of the ICLL in conjunction with this annotated version. IMO publications can be ordered via the IMO website at www.imo.org.

Unless stated otherwise in this annotated version, all revisions apply to new U.S. vessels (the keels of which were laid on/after January 1, 2005) seeking an international (ICLL) or unrestricted domestic (US) load line certificate.

Future annotations will be added whenever revised ICLL regulations affect the technical content of this

New ICLL Reg 2-1 requires that

"recognized organizations" comply with IMO resolutions A.737(18) and

A.789(19), as amended.

Original ICLL Reg 3(11) has been redesignated as Reg 3(12)

The 2005 revisions to the ICLL went into force on 1 January 2005, and apply to all new U.S. and foreign vessels (i.e., keels laid on/after that date) that are issued an international

(ICLL) load line certificate.

Except where stated otherwise, all

ICLL revisions also apply to new

U.S. vessels that are seeking an unrestricted domestic (US) load line certificate.

Revised ICLL Reg 13 further clarifies

Position 2 with respect to exposed superstructure decks.

SUPERSTRUCTURE DECK

New ICLL Reg 3(11) adds the following definition: "A superstructure deck is a deck forming the upper boundary of a superstructure."

Original ICLL Reg 3(12) has been redesignated as Reg 3(13)

The 2005 revisions to the ICLL went into force on 1 January 2005, and apply to all new U.S. and foreign vessels (i.e., keels laid on/after that date) that are issued an international

(ICLL) load line certificate.

Except where stated otherwise, all

ICLL revisions also apply to new

U.S. vessels that are seeking an unrestricted domestic (US) load line certificate.

High Speed Craft New ICLL Reg 2(9) provides that vessels fully certificated in accordance with the 2000 High

Speed Craft Code (HSC 2000) are deemed fully compliant with the ICLL, and that the HSC certificates and permit shall have the same force and recognition as an ICLL certificate.

SHIPS WITHOUT A RUDDER STOCK:

New ICLL Reg 3(1)(b) defines the length of ships without a rudder stock as "96% of the waterline located at 85% of the least moulded depth."

SHIPS WITH A CONCAVE STEM:

ICLL Reg 3(1)(c) defines the length of ships with a concave stem.

Original ICLL Reg 1(7) was revised by replacing the word "bossing" with

"appendages."

MULTI-HULL CRAFT

New ICLL Reg 3(7)(b) requires that the block coefficient of a multi-hull craft be calculated using the full breadth of the vessel, not a single hull (see also page 101)

Resolution A.320 has been incorporated into revised ICLL

Reg 27.

Reg 27.

Reg 27(7) is now revised Reg 27(8) &

Reg 27(9) is now revised Reg 27(10)

Reg 27(11) is now revised Reg 27(14)

Reg 27(10) is now revised Reg 27(6)

Reg 27(11) is now revised Reg 27(14)

This copy of the "Load Line Technical Manual" has been annotated to reflect the 2005 revisions to the International Convention on

Load Lines (ICLL). Except where stated otherwise, all ICLL revisions apply to new U.S. vessels (i.e., keels laid on/after 1 January

2005) that are seeking either an international (ICLL) or unrestricted domestic (US) load line certificate.

Annotated

Reserve Buoyancy...........................................................................................................85

Vessels with Increased Freeboards................................................................................103

November 6, 2003

In 1990, the U.S. Coast Guard commissioned the American Bureau of Shipping (ABS) to prepare a report that integrated U.S. load line regulations & policies, ABS and IACS interpretations, IMO circulars, and the International Convention on Load Lines (ICLL) into a single reference document.

This “Load Line Technical Manual” is the result of that effort. It sets forth the technical procedures for evaluating, calculating and assigning ICLL load lines, using USCG and ABS policies where the

Convention leaves certain requirements “to the satisfaction of the Administration” or is open to interpretation. This manual applies to U.S. vessels seeking an international ICLL assignment or a domestic U.S. load line assignment for unrestricted voyages by sea; it does not cover U.S. load line regulations for other types of domestic voyages (such as coastwise or Great Lakes).

This electronic version of the manual has been divided into five Adobe .pdf files:

LL Tech Manual-ToC.pdf Table of Contents

LL Tech Manual-Ch1.pdf Chapter I, General Items

LL Tech Manual-Ch2.pdf Chapter II, Load Line Calculation

LL Tech Manual-Ch3.pdf Chapter III, Cond of Assignment-Minimum Freebrd

LL Tech Manual-Ch4.pdf Chapter IV, Cond of Assignment-Increased Freebrd

This Technical Manual was originally prepared in 1990; therefore, it only incorporates material up to that time. Since then, there has been further evolution of load line policies, additional IACS interpretations, new IMO Circulars, etc. The ICLL itself has been amended by the 1988 Protocol (which entered into force on February 3, 2000) as well as subsequent amendments that were adopted in 2003 (and will enter into force on 1 January 2005). There are no immediate plans to incorporate these into this manual.

Preface to the annotated version

February 3, 2006

On January 1, 2005, numerous new and revised ICLL regulations entered into force, adding new technical requirements or expanding existing requirements to encompass shipboard arrangements not previously addressed. The amendments also incorporate (wholly or partially) more than 35 IACS Unified

Interpretations on the Load Line Convention.

In response to these revisions, this annotated version of the Load Line Technical Manual has been corrected, but not updated. Annotations have been inserted only where the ICLL revisions have affected the original LLTM discussion or policy (the affected text is boxed). However, there are many other ICLL revisions that are not indicated in this annotated version. Readers are advised to consult an officially-published copy of the ICLL in conjunction with this annotated version. IMO publications can be ordered via the IMO website at www.imo.org.

Unless stated otherwise in this annotated version, all revisions apply to new U.S. vessels (the keels of which were laid on/after January 1, 2005) seeking an international (ICLL) or unrestricted domestic (US) load line certificate.

Future annotations will be added whenever revised ICLL regulations affect the technical content of this

Revised ICLL Reg 29 substitutes "E1" for

"E" (where "E1" is the effective length "E" excluding the length of trunks).

Revised ICLL Reg 29 substitutes "E1" for

"E" (where "E1" is the effective length "E" excluding the length of trunks).

Revised ICLL Reg 30 stipulates that the block coefficient is not to be taken greater than 1.0.

Revised ICLL Reg 31(3) now makes the required method.

Revised ICLL Reg 11 requires enclosing bulkheads "...to be of an acceptable level of strength."

SUPERSTRUCTURE DECK: New ICLL Reg 3(11) adds the following definition: "A superstructure deck is a deck forming the upper boundary of a superstructure."

Revised ICLL Reg 35(3) adds a new provision regarding height corrections for forecastles and poops on vessels with excessive sheer.

Orig'l ICLL Reg 15(1) has been redesignated as Reg 14-1.

Revised ICLL Reg 37(2) deletes the original percentage deductions for Type "B" vessels. New Type

"B" vessels (i.e., keels laid on/after

1 Jan 2005) must use the Type "A" percentages.

Revised ICLL Reg 37(3) deletes the original bridge & forecastle corrections (paras (1) & (3) at right). These corrections are not allowed for new Type "B" vessels

(i.e., keels laid on/after

1 Jan 2005).

ICLL Reg 37(3) has been significantly revised.

Revised ICLL Reg 37(3) deletes this forecastle correction (para (3) at right) for Type "B" vessels. For new Type "B" vessels (i.e., keels laid on/after 1 Jan 2005), no deduction is allowed if the effective length of the forecastle is less than 0.07L.

New ICLL Reg 38(13)(a) stipulates that excess height of a superstructure which does not extend to the aft perpendicular cannot contribute to the sheer allowance.

Original ICLL Reg 38(13) has been redesignated as Reg 38(14) and the correction formula has been revised by substituting

"S1" for "S" (where "S1" is the total length "S" without length of trunks).

Regs 38(14) & (15) have been redesignated as Regs 38(15) &(16)

The ICLL Reg 39 revisions are significant:

Reg 39(1) incorporates a new formula for minimum bow height, and Reg 39(5) adds a new requirement for Reserve Buoyancy.

Revised ICLL Reg 39(1) replaces the original bow height formula with a completely new formula.

The new formula applies to all new vessels (i.e., keels laid on/after 1 Jan 2005) that are seeking an international (ICLL) load line certificate.

However, new U.S. vessels may use the original formula (at right) for purposes of an unrestricted domestic (US) load line certificate.

Revised ICLL Reg 39(2) deletes these provisions (paras (3)a and (3)b at right).

For all new vessels (i.e., keels laid on/after

1 Jan 2005), superstructures contributing to bow height must be enclosed per Reg 3(10) regardless of vessel length.

ICLL Reg 39(2) has been significantly revised.

RESERVE BUOYANCY:

New ICLL Reg 39(5) imposes a reserve buoyancy requirement on all new vessels (keels laid on/after 1 Jan 2005), except oil & chemical tankers and gas carriers, that are seeking an international (ICLL) load line certificate. However, new U.S. vessels need not comply with the reserve buoyancy requirement for purposes of an unrestricted domestic (US) load line certificate.

HIGH SPEED CRAFT New ICLL Reg 2(9) provides that vessels fully certificated in accordance with the 2000 High

Speed Craft Code (HSC 2000) are deemed fully compliant with the ICLL, and that the HSC certificates and permit shall have the same force and recognition as and ICLL certificate.

VESSELS WITH INCREASED New ICLL Reg 2(6) provides certain beneficial treatments for vessels with increased freeboards

FREEBOARDS (such as container ships)

The required bow height here was calculated with the original ICLL

Reg 39(1) formula, which has been superseded by the new formula.

This copy of the "Load Line Technical Manual" has been annotated to reflect the 2005 revisions to the International Convention on

Load Lines (ICLL). Except where stated otherwise, all ICLL revisions apply to new U.S. vessels (i.e., keels laid on/after 1 January

2005 that are seeking either an international (ICLL) or unrestricted domestic (US) load line certificate.

Annotated

Annotated

Annotated

Garbage Chutes, Spurling Pipes & Cable Lockers.........................................................159

Annotated

Skylights..........................................................................................................................165

Annotated

November 6, 2003

In 1990, the U.S. Coast Guard commissioned the American Bureau of Shipping (ABS) to prepare a report that integrated U.S. load line regulations & policies, ABS and IACS interpretations, IMO circulars, and the International Convention on Load Lines (ICLL) into a single reference document.

This “Load Line Technical Manual” is the result of that effort. It sets forth the technical procedures for evaluating, calculating and assigning ICLL load lines, using USCG and ABS policies where the

Convention leaves certain requirements “to the satisfaction of the Administration” or is open to interpretation. This manual applies to U.S. vessels seeking an international ICLL assignment or a domestic U.S. load line assignment for unrestricted voyages by sea; it does not cover U.S. load line regulations for other types of domestic voyages (such as coastwise or Great Lakes).

This electronic version of the manual has been divided into five Adobe .pdf files:

LL Tech Manual-ToC.pdf Table of Contents

LL Tech Manual-Ch1.pdf Chapter I, General Items

LL Tech Manual-Ch2.pdf Chapter II, Load Line Calculation

LL Tech Manual-Ch3.pdf Chapter III, Cond of Assignment-Minimum Freebrd

LL Tech Manual-Ch4.pdf Chapter IV, Cond of Assignment-Increased Freebrd

This Technical Manual was originally prepared in 1990; therefore, it only incorporates material up to that time. Since then, there has been further evolution of load line policies, additional IACS interpretations, new IMO Circulars, etc. The ICLL itself has been amended by the 1988 Protocol (which entered into force on February 3, 2000) as well as subsequent amendments that were adopted in 2003 (and will enter into force on 1 January 2005). There are no immediate plans to incorporate these into this manual.

Preface to the annotated version

February 3, 2006

On January 1, 2005, numerous new and revised ICLL regulations entered into force, adding new technical requirements or expanding existing requirements to encompass shipboard arrangements not previously addressed. The amendments also incorporate (wholly or partially) more than 35 IACS Unified

Interpretations on the Load Line Convention.

In response to these revisions, this annotated version of the Load Line Technical Manual has been corrected, but not updated. Annotations have been inserted only where the ICLL revisions have affected the original LLTM discussion or policy (the affected text is boxed). However, there are many other ICLL revisions that are not indicated in this annotated version. Readers are advised to consult an officially-published copy of the ICLL in conjunction with this annotated version. IMO publications can be ordered via the IMO website at www.imo.org.

Unless stated otherwise in this annotated version, all revisions apply to new U.S. vessels (the keels of which were laid on/after January 1, 2005) seeking an international (ICLL) or unrestricted domestic (US) load line certificate.

Future annotations will be added whenever revised ICLL regulations affect the technical content of this

Revised ICLL Reg 10(2) requires approved loading and stability information to be carried on board at all times.

Whenever alterations have been made that materially affect the loading and stability information, new ICLL Reg 10(4) requires the information to be amended. If necessary, the ship shall be re-inclined.

Revised ICLL Reg 10(2) requires approved loading and stability information to be carried on board at all times.

New ICLL Reg 10(3) requires ships to be inclined upon completion.

Under certain circumstances, data from a sister ship inclining or from a lightweight survey may be used.

Whenever alterations have been made that materially affect the loading and stability information, new ICLL Reg 10(4) requires the information to be amended. If necessary, the ship shall be re-inclined.

Revised ICLL Reg 13 further clarifies

Position 2 with respect to exposed superstructure decks.

Revised ICLL Reg 18(2) now provides that if an internal stairway is enclosed in a proper companionway (with a

Reg 12(1) door), then the external door need not be watertight.

ICLL Reg 18(2) has been revised.

New ICLL Reg 18(7) requires that where the closing appliances of access openings in superstructures and deckhouses do not meet the requirements of Reg 12(1), interior deck openings shall be considered exposed (i.e., situated in the open deck).

New ICLL Reg 17(2) requires double-door protection for exposed machinery casings on vessels with reduced freeboards, with an inner door sill of 230 mm and outer door sill of 600 mm.

Revised ICLL Reg 17(3) & new Reg 17(4) have special vent coaming requirements for machinery spaces and emergency generator rooms needing continuous air supply.

Revised ICLL Reg 21(1) now also requires these doors to open outwards unless otherwise approved.

ICLL Reg 21(1) has been revised.

required.

Revised ICLL Reg 21(2) now prohibits the lower edge from being less than

230 mm above the uppermost load line, unless otherwise permitted.

New ICLL Regs 21(3) & (4) address special provisions when a lesser height is permitted.

ICLL Regs 21(1) & (2) have been revised.

New ICLL Reg 21(5) concerns bow doors, inner doors, side doors, stern doors, and their securings.

NOTE: The 2005 amendments to ICLL significantly revised the hatch cover requirements (Regs 14, 14-1, 15, and 16).

Revised ICLL Reg 14(1) now requires all Position 1 and Position 2 hatchways to comply with Reg 16

(steel covers with gaskets & clamping devices). On new vessels (i.e., keels laid on/after 1 Jan 2005), Reg 15 hatchways (portable covers with tarps & battening devices) must be specially approved.

ICLL Reg 15 has been significantly revised.

ICLL Reg 18(2) has been revised.

New ICLL Reg 18(7) requires that where the closing appliances of access openings in superstructures and deckhouses do not meet the requirements of Reg 12(1), interior deck openings shall be considered exposed (i.e., situated in the open deck).

Hatchway coaming requirements have been consolidated into new

ICLL Reg 14-1 and apply to all hatchways (not just those closed by portable covers and tarps).

However, the original height requirements have not been changed.

Strength requirements for mild steel covers are now in revised

ICLL Regs 15(3) & (5). The strength criteria for pontoon covers are now in revised ICLL

Reg 15(6).

The strength criteria & design loads for portable beams are now in revised ICLL Regs 15(4) and (5).

ICLL Reg 15 has been significantly revised.

Hatchway coaming requirements have been consolidated into new

ICLL Reg 14-1.

However, the coaming height requirements have not been

ICLL Reg 16 has been significantly revised.

Revised ICLL Reg 14(1) now requires all Position 1 and Position 2 hatchways to comply with

Reg 16 (steel covers with gaskets & clamping devices).

The strength criteria & design loads for steel hatch covers are in revised

ICLL Regs 16(2) to (5).

New ICLL Reg 16(7) requires that hatch covers resting on coamings shall be secured by means capable of withstanding horizontally-acting loads in any sea condition.

The coaming height requirements have been moved from original ICLL Reg 19(4) to revised Reg 19(1).

New ICLL Reg 20(3) requires that air pipes be fitted with automatic closing devices. This applies to all new ships (i.e., keels laid on/after 1 Jan 2006), not just timber/log carriers.

ICLL Reg 20 has been significantly revised.

New ICLL Reg 20(3) requires that air pipes be fitted with automatic closing devices. This applies to all new ships

(i.e., keels laid on/after 1 Jan 2006), not just timber/log carriers.

ICLL Reg 22 was significantly revised by the 2005 amendments.

New Regs 22(1)(b) to (f) added specific requirements for piping discharges and scuppers passing through different spaces (and added a schematic diagram illustrating acceptable arrangements); and

New Reg 22(7) added specific thicknesses for various pipe diameters for substantial and non-substantial service.

Because the thicknesses are based upon metric pipe sizes, U.S. vessels may continue to use the pipe schedules specified on pages 157-158.

Original ICLL Reg 22(3) has been redesignated as Reg 22(4).

ICLL Reg 22(4) has been redesignated as Reg 22(5).

ICLL Reg 22(2) has been redesignated as Reg 22(3).

New ICLL Reg 22(7)(b) specifies "substantial" thicknesses for various pipe diameters (in metric sizes).

U.S. vessels may continue to use the schedule thicknesses in this table.

GARBAGE CHUTES New ICLL Reg 22-1 contains requirements for garbage chutes.

SPURLING PIPES AND New ICLL Reg 22-2 contains requirements for spurling pipes and cable lockers.

CABLE LOCKERS

and SKYLIGHTS

NOTE: ICLL Reg 23 has been substantially expanded by the 2005 amendments.

These apply to all new vessels (i.e., keels laid on/after 1 January 2005).

The definitions at right have been augmented by the 2005 ICLL revisions:

New ICLL Reg 23(2) defines "side scuttles" as round or oval openings with an area not exceeding 0.16 sq. meters

(larger openings must be treated as

"windows").

New ICLL Reg 23(3) defines "windows" as generally rectangular openings with a radius at each corner, and round or oval openings with an area exceeding 0.16

sq. meters.

Deadlights are internal covers while storm covers are fitted externally.

ICLL Reg 23(2) has been redesignated as Reg 23(5).

New ICLL Reg 23(4) stipulates that deadlights above the freeboard deck need only be weathertight.

ICLL Reg 23(1) has been redesignated as Reg 23(4)

New ICLL Regs 23(8) & (9) add deadlight requirements for side scuttles and windows on the second tier side shell.

SKYLIGHTS: New ICLL Reg 23(12) contains requirements for skylights.

New ICLL Reg 23(4) further requires that deadlights be capable of being closed & secured watertight if fitted below the freeboard deck, and weathertight if fitted above the freeboard deck.

New ICLL Reg 24(1)(f) stipulates that wells on raised quarterdecks shall be treated as being on freeboard decks.

New ICLL Reg 24(1)(g) stipulates that gutter bars more than 300mm high fitted around the weather decks of tankers in way of cargo manifolds & piping shall be treated as bulwarks. The Reg also has requirements regarding freeing ports and closures for such gutter bars.

New ICLL Reg 24(1)(g) stipulates that gutter bars more than 300mm high fitted around the weather decks of tankers in way of cargo manifolds & piping shall be treated as bulwarks. The Reg also has requirements regarding freeing ports and closures.

Revised ICLL Reg 24(4) now includes freeing port requirements for wells in way of open superstructures.

Revised ICLL Reg 24(6) prohibits securing appliances on shutters.

New ICLL Reg 17(2) allows double-door protection for exposed machinery casings on vessels with reduced freeboards provided that the inner door sill is 230 mm and the outer door sill is 600 mm.

ICLL Reg 26(2) has been redesignated as 26(3), and Regs 27(7) & (9) are now 27(8) & (10) required.

Revised ICLL Reg 26(3) requires permanent gangways on Type "A" vessels to comply with Reg 25-1(2)(e).

ICLL Reg 26(5) has been redesignated as 26(6), and Regs 27(7), 27(7)(b) & (9) are now 27(8), (8)(b) & (10)

This chapter of the "Load Line Technical Manual" is not affected by the 2005 revisions to the

International Convention on Load Lines (ICLL).

November 6, 2003

In 1990, the U.S. Coast Guard commissioned the American Bureau of Shipping (ABS) to prepare a report that integrated U.S. load line regulations & policies, ABS and IACS interpretations, IMO circulars, and the International Convention on Load Lines (ICLL) into a single reference document.

This “Load Line Technical Manual” is the result of that effort. It sets forth the technical procedures for evaluating, calculating and assigning ICLL load lines, using USCG and ABS policies where the

Convention leaves certain requirements “to the satisfaction of the Administration” or is open to interpretation. This manual applies to U.S. vessels seeking an international ICLL assignment or a domestic U.S. load line assignment for unrestricted voyages by sea; it does not cover U.S. load line regulations for other types of domestic voyages (such as coastwise or Great Lakes).

This electronic version of the manual has been divided into five Adobe .pdf files:

LL Tech Manual-ToC.pdf Table of Contents

LL Tech Manual-Ch1.pdf Chapter I, General Items

LL Tech Manual-Ch2.pdf Chapter II, Load Line Calculation

LL Tech Manual-Ch3.pdf Chapter III, Cond of Assignment-Minimum Freebrd

LL Tech Manual-Ch4.pdf Chapter IV, Cond of Assignment-Increased Freebrd

This Technical Manual was originally prepared in 1990; therefore, it only incorporates material up to that time. Since then, there has been further evolution of load line policies, additional IACS interpretations, new IMO Circulars, etc. The ICLL itself has been amended by the 1988 Protocol (which entered into force on February 3, 2000) as well as subsequent amendments that were adopted in 2003 (and will enter into force on 1 January 2005). There are no immediate plans to incorporate these into this manual.

Preface to the annotated version

February 3, 2006

On January 1, 2005, numerous new and revised ICLL regulations entered into force, adding new technical requirements or expanding existing requirements to encompass shipboard arrangements not previously addressed. The amendments also incorporate (wholly or partially) more than 35 IACS Unified

Interpretations on the Load Line Convention.

In response to these revisions, this annotated version of the Load Line Technical Manual has been corrected, but not updated. Annotations have been inserted only where the ICLL revisions have affected the original LLTM discussion or policy (the affected text is boxed). However, there are many other ICLL revisions that are not indicated in this annotated version. Readers are advised to consult an officially-published copy of the ICLL in conjunction with this annotated version. IMO publications can be ordered via the IMO website at www.imo.org.

Unless stated otherwise in this annotated version, all revisions apply to new U.S. vessels (the keels of which were laid on/after January 1, 2005) seeking an international (ICLL) or unrestricted domestic (US) load line certificate.

Future annotations will be added whenever revised ICLL regulations affect the technical content of this