Section, Pub. L. 96–70, title I, § 1246, Sept. 27, 1979, 93 Stat. 476; Pub. L. 100–203, title V, § 5428(a), Dec. 22, 1987, 101 Stat. 1330–274, authorized Commission to purchase artificial limbs or other appliances for persons who were injured in service of Isthmian Canal Commission or of Panama Canal before Sept. 7, 1916.