(a) We may disapprove a request for an amendment of a right-of-way only if at least one of the following is true:
- (1) The Indian landowners have not consented to the amendment under § 169.107 and we have not consented on their behalf under § 169.108;
- (2) The grantee's sureties for the bonds or alternative securities have not consented;
- (3) The grantee is in violation of the right-of-way grant;
- (4) The requirements of this subpart have not been met; or
- (5) We find a compelling reason to withhold approval in order to protect the best interests of the Indian landowners.
- (b) We will defer, to the maximum extent possible, to the Indian landowners' determination that the amendment is in their best interest.
- (c) We may not unreasonably withhold approval of an amendment.