IMO approves unified interpretations of SOLAS chapter II-2

The International Maritime Organization has issued the circular approving unified interpretations of SOLAS chapter II-2.

This circular was published on December 5th, 2022.

The Maritime Safety Committee, at its 106th session (2 to 11 November 2022), with a view to providing more specific guidance on SOLAS regulation II-2/9, approved unified interpretations of SOLAS chapter II-2, prepared by the Sub-Committee on Ship Systems and Equipment, at its eighth session (28 February to 4 March 2022), as set out in the annex.

Member States are invited to use the annexed unified interpretations as guidance when applying SOLAS regulation II-2/9, and to bring the unified interpretations to the attention of all parties concerned.

Annex: Unified interpretations of SOLAS chapter II-2

CHAPTER II-2: CONSTRUCTION – FIRE PROTECTION, FIRE DETECTION, AND FIRE EXTINCTION

Regulation II-2/9.7.3.1.2 – Containment of fire, details of fire dampers and duct penetrations  

The fire insulation required by regulation SOLAS II-2/9.7.3.1.2 should be provided only to the part of the duct and/or sleeve that is on the same side of the division being fire insulated, and be extended for a minimum of 450 mm along the duct and/or sleeve.

Regulation II-2/9.7.3.2 – Containment of fire, details of fire dampers and duct penetrations  

When a duct passing through a division is to be in accordance with SOLAS regulations II-2/9.3.2 and II-2/9.7.3.2, no clearance should be allowed between the duct and the division.

RELEVANT DOCUMENT (AVAILABLE ONLY TO SUBSCRIBERS):

UNIFIED INTERPRETATIONS OF SOLAS CHAPTER II-2