active duty
(1) The term “active duty” has the meanings as follows (subject to the limitations specified in sections 3002(6) and 3311(b) ): (A) In the case of members of the regular components of the Armed Forces, the meaning given such term in section 101(21)(A). (B) In the case of members of the reserve components of the Armed Forces, service on active duty under a call or order to active duty under section 688, 12301(a), 12301(d), 12301(g), 12301(h), 12302, 12304, 12304a, or 12304b of title 10 or section 712 of title 14. (C) In the case of a member of the Army National Guard of the United States or Air National Guard of the United States, in addition to service described in subparagraph (B), full-time service— (i) in the National Guard of a State for the purpose of organizing, administering, recruiting, instructing, or training the National Guard; or (ii) in the National Guard under section 502(f) of title 32 when authorized by the President or the Secretary of Defense for the purpose of responding to a national emergency declared by the President and supported by Federal funds.