Regulations...
Authorization
Native American Programs Act of 1974, as amended, Public Law 93-644, 88 Stat. 2334, 42 U.S.C. 2991b; Indian Environmental Regulatory Enhancement Act, Public Law 101-408, 104 Stat. 883.
Note:
This section lists the legal authority upon which a program is based (acts, amendments to acts, Public Law numbers, titles, sections, Statute Codes, citations to the U.S. Code, Executive Orders, Presidential Reorganization Plans, and Memoranda from an agency head).
Regulations, Guidelines, And Literature
Regulations are published in 45 CFR 1336.