46 C.F.R. § 4.04-1 Reports of potential vessel casualty.
Title 46 - Shipping
A vessel owner, charterer, managing operator or agent shall immediately notify either of the following Coast Guard officers if there is reason to believe a vessel is lost or imperiled. (a) The Coast Guard district rescue coordination center (RCC) cognizant over the area the vessel was last operating in; or (b) The Coast Guard search and rescue authority nearest to where the vessel was last operating. Reasons for belief that a vessel is in distress include, but are not limited to, lack of communication with or nonappearance of the vessel.
Title 46: Shipping
PART 4—MARINE CASUALTIES AND INVESTIGATIONS
Subpart 4.04—Notice of Potential Vessel Casualty
§ 4.04-1 Reports of potential vessel casualty.
