Minn. Stat. § 239.06: RULES.

The department shall prescribe and adopt such rules as it may deem necessary to carry out the provisions of this chapter, including but not limited to the adoption of definitions of basic units of weights and measures, tables of weights and measures, and weights and measures equivalents to govern weighing and measuring equipment and transactions in Minnesota. The division may change, modify, or amend any or all rules when deemed necessary and the rules shall have the force and effect of law.