25 CFR 900.26: What happens if the Secretary declines a part of a proposal on the ground that the proposal proposes in part to plan, conduct, or administer a program, function, service or activity that is beyond the scope of programs covered under section 102(a) of the Act, or proposes a level of funding that is in excess of the applicable level determined under section 106(a) of the Act?

In those situations the Secretary is required, as appropriate, to approve the portion of the program, function, service, or activity that is authorized under section 102(a) of the Act, or approve a level of funding that is authorized under section 106(a) of the Act. As noted in § 900.25, the approval is subject to any alteration in the scope of the proposal that the Secretary and the Indian tribe or tribal organization approve.