77-1-141. Determination of date of delivery. The date of delivery for a lease, license, permit, or agreement issued by the board or department under this title or under a rule implementing this title or for a document or payment required by the terms of the lease, license, permit, or agreement is:
(1) for mailing by means of the United States postal service, the date of the postmark stamped on the cover in which the document or payment is transmitted; or
(2) for delivery by means other than by the United States postal service or if there is no postmark stamped on a mailing delivered by the United States postal service, the date of actual physical receipt by the department.