All U.S. Coast Guard Documented vessels operating commercially in U.S. waters require a commercial endorsement. The trade indicator and endorsement of a vessel may be added/changed by filing this application with the appropriate fees. A coastwise endorsement entitles a vessel to employment in unrestricted coastwise trade, dredging, towing, and any other employment for which a registry or fishery endorsement is not required. If your vessel is subject to a mortgage of record, you must obtain permission from the mortgagee.