Montana Title 39. Labor § 39-51-504. Reciprocal benefit arrangements

(2)(a) Subject to subsection (2)(b), services performed by an individual for a single employing unit that are customarily performed in more than one state may be considered to be performed entirely within any one of the states in which:

(b) An election made by the employing unit and approved by the department must be in place and must designate in which of the states described in subsection (2)(a) the services must be considered to have been performed.

(a) for the application of the base period of a single state to a claim involving the combining of an individual's wages and employment covered by the laws of two or more states;

(b) that the combining of wages will not involve the duplicate use of wage credits;

(c) that the other state agency or agency of the federal government has agreed to reimburse the unemployment insurance fund for the portion of benefits paid under this chapter upon the basis of the wages or services as the department finds will be fair and reasonable with regard to all affected interests; and

(d) that the reimbursements payable must be considered benefits for the purposes of this chapter.