25 C.F.R. § 171.520 – How will I receive my bill and when do I pay it?

(a) You will receive your bill in the mail at the address of record you provide us.
(b) You should pay your bill no later than the due date stated on your bill.
(c) You will not receive a bill for supplemental water. You must pay us in advance at the supplemental water rate established for you project published annually in the Federal Register.