Montana Title 77. State Lands § 77-1-141. Determination of date of delivery

(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.