Section 181.33 - Conditions for use of manufacturer identification codes(a) No manufacturer or importer may sell or transfer a manufacturer identification code or use a manufacturer identification code that has been assigned to another.(b) A manufacturer or importer who changes the business name or address must advise the Commandant (CG-BSX-23), Attn: Recreational Boating Product Assurance Branch, U.S. Coast Guard Stop 7501, 2703 Martin Luther King Jr. Avenue SE., Washington, DC 20593-7501 of the change in writing.CGD 79-013, 48 FR 40718, Sept. 9, 1983, as amended by CGD 88-052, 53 FR 25122, July 1, 1988; CGD 96-026, 61 FR 33669, June 28, 1996; USCG-2008-0179, 73 FR 35024 , June 19, 2008; USCG-2010-0351, 75 FR 36287 , June 25, 2010; USCG-2014-0410, 79 FR 38449 , July 7, 2014