(a)
The frame or support of each size III, IV, and V fire extinguisher required by Table 34.50-10(a) must be welded or otherwise permanently attached to a bulkhead or deck.
(b)
If a size III, IV, or V fire extinguisher has wheels and is not required by Table 34.50-10(a), it must be securely stowed when not in use to prevent it from rolling out of control under heavy sea conditions.
Code of Federal Regulations
[CGD 77-039, 44 FR 34132, June 14, 1979]