14 U.S.C. § 3903: Eligibility; enrollments

The Auxiliary shall be composed of nationals of the United States, as defined in section 101(a)(22) of the Immigration and Nationality Act (8 U.S.C. 1101(a)(22)), and aliens lawfully admitted for permanent residence, as defined in section 101(a)(20) of the Immigration and Nationality Act (8 U.S.C. 1101(a)(20))—(1) who—(A) are owners, sole or part, of motorboats, yachts, aircraft, or radio stations; or (B) by reason of their special training or experience are deemed by the Commandant to be qualified for duty in the Auxiliary; and (2) who may be enrolled therein pursuant to applicable regulations.