Montana Code Annotated — Title 15 (Taxation)
Mont. Code Ann. § 15-70-513 — Recordkeeping Requirements
15-70-513 . Recordkeeping requirements. The records of each ethanol distributor and ethanol-blended gasoline dealer must be kept for a period of not more than 3 years and must include receipts, invoices, and other information that the department may require.
Source: official text