§ 155.810 § 155.810 Tank vessel security. Operators of tank vessels carrying more oil cargo residue than normal in any cargo tank must assign a surveillance person or persons responsible for maintaining standard vessel security. [USCG-2000-7641, 66 FR 55572, Nov. 2, 2001]
33 CFR §155.810
33 CFR Part 155
TL;DR
Operators of tank vessels carrying more oil cargo residue than normal in any cargo tank must assign a surveillance person or persons responsible for maintaining standard vessel security.