(a) You or your representative may bring payments to the BLM State Office by close of business on or before the due date.

(b) If you use a credit card—

(1) On or before the due date, you must send or fax a written authorization, bearing your signature; or

(2) You may authorize BLM to use your credit card by telephone if you can satisfactorily establish your identity.

(c) You may send payments using a bona fide mail delivery service.

(1) The payment must be postmarked or clearly identified by the mail delivery service as being sent on or before the due date; and

(2) The BLM State Office must receive the payment no later than 15 calendar days after the due date.