Section, act Aug. 14, 1935, ch. 531, title XVIII, § 1896, as added Pub. L. 105–33, title IV, § 4015(a), Aug. 5, 1997, 111 Stat. 337; amended Pub. L. 106–398, § 1 [[div. A], title VII, § 712(a)(2), (b)–(e)], Oct. 30, 2000, 114 Stat. 1654, 1654A–177, 1654A–178; Pub. L. 107–314, div. A, title VII, § 713, Dec. 2, 2002, 116 Stat. 2589; Pub. L. 108–173, title VII, § 736(c)(8), Dec. 8, 2003, 117 Stat. 2356, authorized the Secretary of Health and Human Services and the Secretary of Defense, acting jointly, to establish a demonstration project for providing medicare health care services to certain medicare-eligible military retirees or dependents in a military treatment facility or by a designated provider, to be conducted during the 4-year period beginning on January 1, 1998.