If you intend to add the Coastwise Endorsement to your US Coast Guard vessel Documentation, you simply need to file your application for Endorsement/Trade Indicator Change via the webform application below:
https://unitedstatesvessel.us/change-endorsement-trade-indicator/
Note: USCG Documented vessels seeking a Coastwise Endorsement must submit evidence that the vessel was built in the United States, or must seek a waiver otherwise.
The Code of Federal Regulations (CFR) Title 46 Part 67 Outlines Build Requirements:
§ 67.95 Requirement for determination.
Evidence that a vessel was built in the United States must be on file for any vessel for which a coastwise or fishery endorsement is sought, unless the vessel is otherwise qualified for those endorsements under subpart J of this part.
[CGD 89-007, CGD 89-007a, 58 FR 60266, Nov. 15, 1993, as amended by USCG-2009-0702, 74 FR 49230, Sept. 25, 2009]
§ 67.99 Evidence of build.
(a) Evidence of the facts of build may be either a completed original form CG-1261, or other original document containing the same information, executed by a person having personal knowledge of the facts of build because that person:
(1) Constructed the vessel;
(2) Supervised the actual construction of the vessel; or
(3) Is an officer or employee of the company which built the vessel and has examined the records of the company concerning the facts of build of the vessel.
(b) A vessel owner applying for documentation must file a separate certificate from each builder involved in the construction of the vessel.
(c) A Manufacturer’s Certificate of Origin is not evidence of the facts of build.
§ 67.101 Waiver of evidence of build.
(a) A vessel owner applying for documentation unable to obtain the evidence of build required by § 67.99 may apply for a waiver of that requirement to the Director, National Vessel Documentation Center.
(b) No waiver of the requirement in § 67.99 to produce evidence of build may be granted unless the applicant provides:
(1) A written request for the waiver, explaining why the evidence required by § 67.99 cannot be furnished; and
(2) Competent and persuasive evidence of the facts of build.
[CGD 89-007, CGD 89-007a, 58 FR 60266, Nov. 15, 1993, 58 FR 65131, Dec. 13, 1993, as amended by CGD 95-014, 60 FR 31604, June 15, 1995; USCG-1998-4442, 63 FR 52190, Sept. 30, 1998]
