To the extent and under the circumstances prescribed in this part, the Service shall provide medical advice and outpatient treatment at first-, second-, and third-class medical relief stations and hospitalization at first-class stations to the dependent members of families of the following persons:

(a) Coast Guard. Commissioned officers, chief warrant officers, warrant officers, cadets, and enlisted personnel of the Regular Coast Guard, including those on shore duty and those on detached duty, whether on active duty or retired; and regular members of the United States Coast Guard Reserve and members of the Women's Reserve of the Coast Guard, when on active duty or when retired for disability.

(b) National Ocean Survey. Commissioned officers, ships' officers, and members of the crews of vessels of the United States National Ocean Survey, including those on shore duty and those on detached duty, whether on active duty or retired.

(c) Public Health Service. Commissioned officers of the Regular Corps of the Service, whether on active duty or retired, and commissioned officers of the Reserve Corps of the Service when on active duty or when retired for disability.

(Sec. 326, 58 Stat. 697, as amended; 42 U.S.C. 253)