Corps: (A) Colonel, 650. (B) Lieutenant colonel, 1,910. (C) Major, 3,920. (4) The Air Force: (A) Colonel, 3,450. (B) Lieutenant colonel, 10,270. (C) Major, 13,920. B Reserve Forces 411. End strengths for Selected Reserve (a) In general The Armed Forces are authorized strengths for Selected Reserve personnel of the reserve components as of September 30, 2019, as follows: (1) The Army National Guard of the United States, 343,500. (2) The Army Reserve, 199,500. (3) The Navy Reserve, 59,000. (4) The Marine Corps Reserve, 38,500. (5) The Air National Guard of the United States, 106,600. (6) The Air Force Reserve, 69,800. (7) The Coast Guard Reserve, 7,000. (b) End strength reductions The end strengths prescribed by subsection (a) for the Selected Reserve of any reserve component shall be proportionately reduced by— (1) the total authorized strength of units organized to serve as units of the Selected Reserve of such component which are on active duty (other than for training) at the end of the fiscal year