Self-governance base budgets must be adjusted as follows:

(a) Congressional action.

(1) Increases/decreases as a result of Congressional appropriations and/or a directive in the statement of managers accompanying a conference report on an appropriations bill or continuing resolution.

(2) General decreases due to Congressional action must be applied consistently to BIA, self-governance Tribes/Consortia, and Tribes/Consortia not participating in self-governance.

(3) General increases due to Congressional appropriations must be applied consistently, except where used to achieve equitable distribution among regions and Tribes.

(4) A Tribe/Consortium will be notified of any decrease and be provided an opportunity to reconcile.

(b) Mistakes. If the Tribe/Consortium or the Secretary can identify and document substantive errors in calculations, the parties will renegotiate such amounts and make every effort to correct the errors.

(c) Mutual agreement. Both the Tribe/Consortium and the Secretary may agree to renegotiate amounts at any time.