Persons who are refused employment or who are refused the issuance of documents or who are required to surrender such documents, under this subpart, shall have the right of appeal, and the Commandant shall appoint Boards for acting on such appeals. Each such Board shall, so far as practicable, be composed of one Coast Guard officer, one member drawn from management, and one member drawn from labor. The members drawn from management and labor shall, upon suitable security clearance, be nominated by the Secretary of Labor. Such members shall be deemed to be employees of the United States and shall be entitled to compensation under the provisions of section 15 of the act of August 2, 1946 (5 U.S.C. 55a) while performing duties incident to such employment. The Board shall consider each appeal brought before it and, in recommending final action to the Commandant, shall insure the appellant all fairness consistent with the safeguarding of the national security.