Subject to regulations of the President, lightkeepers, assistant lightkeepers, and officers and crews of vessels of the former Lighthouse Service, including any such persons who subsequent to June 30, 1939 , were involuntarily assigned to other civilian duty in the Coast Guard , who were entitled to medical relief at hospitals and other stations of the Public Health Service prior to July 1, 1944 , and who retired under the provisions of section 763 of title 33 , shall be entitled to medical, surgical, and dental treatment and hospitalization at hospitals and other stations of the Public Health Service. ( Pub. L. 93–353, title I, § 108(a) , July 23, 1974 , 88 Stat. 371 .) Editorial Notes Codification Section was enacted as a part of Health Services Research, Health Statistics, and Medical Libraries Act of 1974, and also as a part of Health Services Research and Evaluation and Health Statistics Act of 1974, and not as a part of the Public Health Service Act which comprises this chapter. Statutory Notes and Related Subsidiaries Effective Date Pub. L. 93–353, title I, § 108(b) , July 23, 1974 , 88 Stat. 371 , provided that: “Subsection (a) [enacting this section] shall be effective from December 28, 1973 .” Transfer of Functions For transfer of authorities, functions, personnel, and assets of the Coast Guard , including the authorities and functions of the Secretary of Transportation relating thereto, to the Department of Homeland Security , and for treatment of related references, see sections 468(b), 551(d), 552(d), and 557 of Title 6, Domestic Security, and the Department of Homeland Security Reorganization Plan of November 25, 2002 , as modified, set out as a note under section 542 of Title 6 . CFR Title Parts 21 16