Texas Parks and Wildlife Code - PARKS & WILD § 77.036. Official Registration

(a) An applicant for a commercial shrimp boat license, which is not a renewal of the previous year's license, issued under this subchapter must submit to the department the boat's United States Coast Guard certificate of documentation or the Texas certificate of number for a vessel or other state's certificate of number for a motorboat.

(b) The certificate of license issued by the department for a commercial shrimp boat must contain the name of the boat if the boat is registered with the United States Coast Guard and the number appearing on the United States Coast Guard certificate of documentation or the Texas or other state's certificate of number.