Section, act July 9, 1952, ch. 608, pt. II, § 262, as added Aug. 9, 1955, ch. 665, § 2(i), 69 Stat. 600; amended Apr. 23, 1956, ch. 209, § 1, 70 Stat. 115; July 17, 1959, Pub. L. 86–96, 73 Stat. 221; July 12, 1960, Pub. L. 86–632, § 2, 74 Stat. 468, authorized President to accept enlistments in the Ready Reserve, to maintain them at a level necessary for national defense, of persons not having attained age 18, and six months and who had not been ordered to report for induction, or who possessed critical skills and were engaged in defense industry, fixed period of enlistment at eight years with active duty therein for three to six months, deferred such persons from universal military training, and required National Security Training Commission to advise President and Secretary of Defense and to report annually to Congress regarding welfare of trainees.