46 C.F.R. § 32.56-20 Insulation of exterior boundaries: Superstructures and deckhouses—T/ALL.
Title 46 - Shipping
The following exterior boundaries of superstructures and deckhouses that contain accommodation, service, and control spaces, except wheelhouses, must be insulated to “A-60” Class: (a) The exterior boundaries that face the cargo area. (b) The portion of the exterior bulkheads and decks within 3 meters (10 feet) of these boundaries.
Title 46: Shipping
PART 32—SPECIAL EQUIPMENT, MACHINERY, AND HULL REQUIREMENTS
Subpart 32.56—Structural Fire Protection for Tank Ships With a Keel Laying Date On or After January 1, 1975
§ 32.56-20 Insulation of exterior boundaries: Superstructures and deckhouses—T/ALL.
