There is authorized to be appropriated the sum of not to exceed $454,000 for the purpose of acquiring lands, interests in lands, and improvements thereon as may be necessary for carrying out sections 428k to 428o of this title. ( Pub. L. 86–738, § 3 , Sept. 8, 1960 , 74 Stat. 876 ; Pub. L. 92–272, title I, § 101(5) , Apr. 11, 1972 , 86 Stat. 120 .) Editorial Notes Amendments 1972— Pub. L. 92–272 increased authorization of appropriations from a sum not to exceed $226,000 to a sum not to exceed $454,000.