§ 66.74 Payment or reimbursement.

(a) Within thirty days after any adjustment of a noncompliance penalty under this subpart has become administratively final:

(1) Any deficiency owed by the source owner or operator shall be paid as provided in § 66.62.

(2) Any reimbursement shall be paid by check from the United States payable to the order of the source owner or operator, and sent by registered or certified mail, return receipt requested.