Section 454a, acts Sept. 9, 1950, ch. 939, § 4, 64 Stat. 828; June 29, 1953, ch. 158, § 3, 67 Stat. 88; June 18, 1954, ch. 307, 68 Stat. 254; June 30, 1955, ch. 250, title II, § 201, 69 Stat. 224, which provided for promotion of physicians, dentists, and allied specialist categories, period of service, and discharge and resignation of such personnel, expired on June 30, 1957. See sections 451 and 455 of this Appendix.

Section 454b, act Sept. 9, 1950, ch. 939, § 6, 64 Stat. 828, which defined “allied specialist categories” as used in sections 454 (i) and 454a of this Appendix, expired on June 30, 1957.

Section 7 of act Sept. 9, 1950, as amended by acts June 19, 1951, ch. 144, title I, § 2(b), 65 Stat. 88; June 29, 1953, § 9; June 30, 1955, § 201 and by Pub. L. 85–62, § 8, June 27, 1957, 71 Stat. 208, provided that sections 454a and 454b of this Appendix shall terminate as of June 30, 1957.