25 U.S.C. § 1312 : Indians — Constitutional Rights Of Indians — Model Code Governing Courts Of Indian Offenses — Authorization Of Appropriations Date: 16 Feb 2017 TEXT PDF There is hereby authorized to be appropriated such sum as may be necessary to carry out the provisions of this subchapter. (Pub. L. 90–284, title III, § 302, Apr. 11, 1968, 82 Stat. 78.)