Montana Code Annotated — Title 15 (Taxation)
Mont. Code Ann. § 15-70-411 — Recordkeeping Requirements
15-70-411 . Recordkeeping requirements. Each distributor or any other person dealing in, transporting, receiving, or storing gasoline or special fuel shall keep records, receipts, and invoices and any other pertinent papers and information that the department of transportation may require for a minimum of 3 years.
Source: official text