(a) When we receive an assignment for our approval, we will notify the grantee of the date we receive it. If our approval is required, we have 30 days from receipt of the executed assignment, proof of any required consents, and any required documentation to approve or disapprove the assignment. Our determination whether to approve the assignment will be in writing and will state the basis for our approval or disapproval.

(b) If we do not meet the deadline in this section, the grantee or Indian landowners may take appropriate action under §169.304.