Actions taken by BIA under this part must comply with the National Environmental Policy Act of 1969, 42 U.S.C. 4321 et seq., applicable provisions of the Council on Environmental Quality, 40 CFR part 1500, and applicable tribal laws and provisions of the Navajo Nation Environmental Policy Act CAP-47-95, where the tribal laws and provisions do not violate a federal or judicial decision or conflict with the Secretary's trust responsibility under federal law.