Minn. Stat. § 150A.28: PROHIBITION AGAINST THE USE OF A NONREGISTERED DENTAL LABORATORY.

(a) A dentist licensed under this chapter must use a dental laboratory registered under sections 150A.24 to 150A.31 for any dental laboratory work that is performed in this state and outside of the office of a licensed dentist.

(b) No registered dental laboratory shall subcontract all or part of any dental laboratory work that is prescribed by a work order to another dental laboratory unless that laboratory provides the registered dental laboratory with a material content notice and the country of origin for any dental laboratory work performed by the subcontracting dental laboratory.

(c) Nothing in this section prohibits a licensed dentist from directing a nonregistered dental laboratory located outside the state to manufacture or repair a dental prosthesis pursuant to a valid work order.