SC211

SC211
SC211 Protection of fuel oil tanks and designation of(June(cont)2006)
fore peak spaces(Corr.1Oct 2007)(Rev.1Sep 2024)

Interpretation of regulations 3.6 and 4.5.1.1 of SOLAS Chapter II-2 and paragraphs
1.3.6 and 3.2.1 of the International Code for the Construction and Equipment of Ships
Carrying Dangerous Chemicals in Bulk (IBC Code)SOLAS II-2/3.6 reads as follows:“Cargo area is that part of the ship that contains cargo holds, cargo tanks, slop tanks andcargo pump-rooms including pump-rooms, cofferdams, ballast and void spaces adjacent tocargo tanks and also deck areas throughout the entire length and breadth of the part of theship over the above-mentioned spaces.”
SOLAS II-2/4.5.1.1 reads as follows:“Cargo pump-rooms, cargo tanks, slop tanks and cofferdams shall be positioned forward ofmachinery spaces. However, oil fuel bunker tanks need not be forward of machinery spaces.
Cargo tanks and slop tanks shall be isolated from machinery spaces by cofferdams, cargo
pump-rooms, oil bunker tanks or ballast tanks. Pump-rooms containing pumps and theiraccessories for ballasting those spaces situated adjacent to cargo tanks and slop tanks andpumps for oil fuel transfer, shall be considered as equivalent to a cargo pump-room within thecontext of this regulation provided that such pump rooms have the same safety standard asthat required for cargo pump-rooms. Pump-rooms intended solely for ballast or oil fueltransfer, however, need not comply with the requirements of regulation 10.9. The lower
portion of the pump-room may be recessed into machinery spaces of category A toaccommodate pumps, provided that the deck head of the recess is in general not more than
one third of the moulded depth above the keel, except that in the case of ships of not morethan 25,000 tonnes deadweight, where it can be demonstrated that forreasons of access and satisfactory piping arrangements this is impracticable, theAdministration may permit a recess in excess of such height, but not exceeding one half ofthe moulded depth above the keel.”Note:
1. This UI is to be uniformly implemented by IACS Societies for ships contracted forconstruction on or after 1 July 2006.
2. Rev.1 of this UI is to be uniformly implemented by IACS Societies for ships contracted forconstruction on or after 1 January 2026.
3. The “contracted for construction” date means the date on which the contract to build thevessel is signed between the prospective owner and the shipbuilder. For further details
regarding the date of “contract for construction”, refer to IACS Procedural Requirement (PR)No. 29.

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SC211

SC211 Paragraph 1.3.6 of the IBC Code reads as follows:(cont)

Cargo area is that part of the ship that contains cargo tanks, slop tanks, cargo pump rooms
including pump rooms, cofferdams, ballast or void spaces adjacent to cargo tanks or slop
tanks and also deck areas throughout the entire length and breadth of the part of the shipover the above mentioned spaces. Where independent tanks are installed in hold spaces,cofferdams, ballast or void spaces at the after end of the aftermost hold space or at theforward end of the forward-most hold space are excluded from the cargo area.
Paragraph 3.2.1 of the IBC Code reads as follows:
No accommodation or service spaces or control stations shall be located within the cargoarea except over a cargo pump-room recess or pump-room recess that complies with SOLAS
regulation II-2/4.5.1 to 4.5.2.4 and no cargo or slop tank shall be aft the forward end of any
accommodation.
Interpretations
Interpretation 1
Void space or ballast water tank protecting fuel oil tank as shown in Figure 1 at Annex, neednot be considered as "cargo area" defined in Reg. II-2/3.6 even though they have a cruciform
contact with the cargo oil tank or slop tank.
The void space protecting fuel oil tank is not considered as a cofferdam specified in Reg. II2/4.5.1.1. There is no objection to the locations of the void space shown in Figure 1, eventhough they have a cruciform contact with the slop tank.
Interpretation 2Regarding the spaces referred to in SOLAS II-2/3.6 and IBC Code 1.3.6, the followinginterpretation is provided:--

A non-hazardous space in the forecastle area which is protected from the cargo tanks
by cofferdam, void space or other compartments, will not be defined as part of cargoarea.
Compartments located above the Cofferdam, void or other compartments protectingthe non-hazardous spaces will be defined as part of the cargo area.

Interpretation 2 is illustrated in Figure 2.

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Annex

(cont)
Figure 1Top view

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Figure 2
Arrangements shown in samples 1, 2, 5 and 6 are applicable to both oil tankers and chemicaltankers

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SC211(cont)

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SC211 Arrangements shown in samples 3 and 4 are applicable to oil tankers only.
(cont)End ofDocument

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