{"data":{"id":"us/33-cfr-150.310","jurisdiction":"us","citation":"33 CFR 150.310","heading":"When is radar surveillance required?","body":"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:\n(a) A tanker is proceeding to the safety zone after submitting the report required in § 150.325 in this part;\n(b) A tanker or support vessel is underway in the safety zone or area to be avoided;\n(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\n(d) As described in the deepwater port security plan.","path":["Title 33—Navigation and Navigable Waters","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER NN—DEEPWATER PORTS","PART 150—DEEPWATER PORTS: OPERATIONS","Subpart D—Vessel Navigation"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-33.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:35Z","sha256":"443dfbeda059ee35c7ab119bf57d43e7c78295a3414d30534d82a7c59f620597","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-150.305","next":"us/33-cfr-150.320"},"notice":"GroundRules: Original legal text. Not legal advice."}