46 C.F.R. § 108.637 Hand portable fire extinguishers.
Title 46 - Shipping
(a) Each hand portable fire extinguisher must be marked with a number that identifies it in relation to all other hand portable fire extinguishers. (b) The location of each hand portable fire extinguisher must be marked with the same number that is marked on the extinguisher.
Title 46: Shipping
PART 108—DESIGN AND EQUIPMENT
Subpart G—Equipment Markings and Instructions
§ 108.637 Hand portable fire extinguishers.

