46 C.F.R. § 132.240 Stowage of semiportable fire extinguishers.
Title 46 - Shipping
The frame or support of each semiportable fire extinguisher of size III, IV, or V must be secured to prevent the extinguisher from shifting in heavy weather.
Title 46: Shipping
PART 132—FIRE-PROTECTION EQUIPMENT
Subpart B—Portable and Semiportable Fire Extinguishers
§ 132.240 Stowage of semiportable fire extinguishers.

