46 CFR §5.903

1. (a)An application form for a new credential or endorsement may be obtained from any Officer in Charge, Marine Inspection.
2. (b)The completed application and letter must be addressed to the U.S. Coast Guard Office of Investigations and Analysis, Commandant (CG-INV-1), U.S. Coast Guard Stop 7501, 2703 Martin Luther King Jr. Avenue SE., Washington, DC 20593-7501, and must be delivered in person to the nearest Officer in Charge, Marine Inspection.
3. (c)The letter is an informal request for the issuance of a new credential or endorsement and should include the following:
   1. (1)A letter from each employer during the last three years attesting to the individual's work record;
   2. (2)Information supportive of rehabilitation or cure when the credential or endorsement was revoked because of incompetency or association with dangerous drugs; and
   3. (3)Any other information which may be helpful in arriving at a determination in the matter.
4. (d)The Officer in Charge, Marine Inspection, forwards the letter and application, together with an evaluation and recommendation, to the Commandant.