(a) We will grant a permit for grazing on individually-owned Indian land at less than fair annual rental if, after competitive bidding of the permit, we determine that such action would be in the best interests of the individual Indian landowners.

(b) We may approve a permit for grazing on individually-owned Indian land at less than fair annual rental if:

(1) The permit is for the Indian landowner's immediate family or co-owner; or

(2) We determine it is in the best interest of the Indian landowners.

(c) We may approve a permit for grazing on tribal land at less than fair annual rental if the tribe sets the rate.