33 CFR 150.310 - When is radar surveillance required?
A manned deepwater port's person in charge of vessel operations must maintain radar surveillance of the safety zone or area to be avoided when:
(a) A tanker is proceeding to the safety zone after submitting the report required in § 150.325 in this part;
(c) A vessel other than a tanker or support vessel is about to enter or is underway in the safety zone or area to be avoided; or
Title 33 published on 2013-07-01
no entries appear in the Federal Register after this date.