This subchapter and subchapter II shall be administered under regulations prescribed by-
(1) the Secretary of Defense, with respect to the armed forces under the jurisdiction of the Secretary of Defense;
(2) the Secretary of Homeland Security, with respect to the Coast Guard when it is not operating as a service in the Navy;
(3) the Secretary of Health and Human Services, with respect to the commissioned corps of the Public Health Service; and
(4) the Secretary of Commerce, with respect to the National Oceanic and Atmospheric Administration.
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