; or (B) for the 5-year period following graduation from an academy described in paragraph (4)(C)(ii), serve as a commissioned officer on active duty in an armed force of the United States or as a commissioned officer of the National Oceanic and Atmospheric Administration or the Public Health Service, pursuant to section 51509(h) of title 46, United States Code. (6) If an individual conferred a degree from a State maritime academy pursuant to paragraph (1) fails to comply with the requirements established by the Secretary, the Secretary may exercise the remedies under section 51509 of title 46, United States Code. (c) Extension of authorization The Secretary may apply the provisions of subsections (a) and (b) to subsequent graduating classes at the United States Merchant Marine Academy and State maritime academies, and extend compliance dates applicable to such graduates, if the Secretary determines it is necessary to respond to the public health emergency declared by the Secretary of Health and Human Services issued on January 27, 2020, titled Concerning the Novel Coronavirus . 310. Regulation of anchorage and movement of vessels during national emergency Section 70051 of title 46, United States Code, is amended— (1) in the section heading by inserting or public health emergency after national emergency ; (2) by inserting or whenever the Secretary of Health and Human Services determines a public health emergency exists, after international relations of the United States ; (3) by inserting or to ensure the safety of vessels and persons in any port and navigable waterway, after harbor or waters of the United States ; (4) by inserting or public health emergency, after subversive activity