46 CFR § 98.33-9
Stowage
April 15, 2021
Each portable tank or IBC authorized under §98.33-5 of this part must be secured to the vessel by devices of sufficient strength and number to prevent the tank from moving in any direction during transport.
[CGD 84-043, 55 FR 37412, Sept. 11, 1990, as amended by USCG-2011-0088, 78 FR 54788, Sept. 6, 2013]