16 U.S.C. § 1203
Authorization of appropriations
There is authorized to be appropriated not to exceed $500,000 for the fiscal year ending June 30, 1968 , $750,000 for the fiscal year ending June 30, 1969 , $1,000,000 for the period beginning July 1, 1969 , and ending June 30, 1973 , and $400,000 for each of the fiscal years ending June 30, 1974 , June 30, 1975 , June 30, 1976 , and June 30, 1977 .
( Pub. L. 89–720, § 3 , Nov. 2, 1966 , 80 Stat. 1149 ; Pub. L. 91–451 , Oct. 14, 1970 , 84 Stat. 922 ; Pub. L. 92–604 , Oct. 31, 1972 , 86 Stat. 1493 .)