40 CFR 145.58: Procedure for processing an Indian Tribe's application.

(a) The Administrator shall process a completed application of an Indian Tribe in a timely manner. He shall promptly notify the Indian Tribe of receipt of the application.

(b) A tribe that meets the requirements of § 145.52 is eligible to apply for development grants and primary enforcement responsibility for an Underground Injection Control program and the associated funding under section 1443(b) of the Act and primary enforcement responsibility for the Underground Injection Control Program under sections 1422 and/or 1425 of the Act.