active duty for training
(22) The term “active duty for training” means— (A) full-time duty in the Armed Forces performed by Reserves for training purposes; (B) full-time duty for training purposes performed as a commissioned officer of the Reserve Corps 1 of the Public Health Service (i) on or after July 29, 1945 , or (ii) before that date under circumstances affording entitlement to “full military benefits”, or (iii) at any time, for the purposes of chapter 13 of this title ; (C) in the case of members of the Army National Guard or Air National Guard of any State, full-time duty under section 316, 502, 503, 504, or 505 of title 32, or the prior corresponding provisions of law; (D) duty performed by a member of a Senior Reserve Officers’ Training Corps program when ordered to such duty for the purpose of training or a practice cruise under chapter 103 of title 10 for a period of not less than four weeks and which must be completed by the member before the member is commissioned; and (E) authorized travel to or from such duty. The term does not include duty performed as a temporary member of the Coast Guard Reserve.