CFR›Title 33›Chapter IV›Part 401›Subpart A›Subject Group Radio Communications ContainsSections 401.60–401.65CorpusDaily eCFRDisplayed edition2026-08-11Last updated2026-08-11 Sections 401.60 § 401.60 Listening watch and notice of arrival. 401.61 § 401.61 Assigned frequencies. 401.62 § 401.62 Seaway stations. 401.63 § 401.63 Radio procedures. 401.64 § 401.64 Calling in. 401.65 § 401.65 Communication—ports, docks and anchorages. Previous Preclearance and Security for Tolls Preclearance and Security for Tolls Next Seaway Navigation Seaway Navigation