CFR › Title 33 › Part 150 › §150.35033 CFR §150.350Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkA support vessel must not anchor in the safety zone or area to be avoided, except:(a)In an anchorage area; or(b)For vessel maintenance, which, in the case of a manned deepwater port, must be cleared by the port's person in charge of vessel operations.