Mont. Code Ann. § 40-7-310
(1) Unless the court issues a temporary emergency order pursuant to 40-7-204, upon a finding that a petitioner is entitled to the physical custody of the child immediately, the court shall order the child delivered to the petitioner unless the respondent establishes that:
(a) the child custody determination has not been registered and confirmed under 40-7-305 and that:
History: En. Sec. 34, Ch. 91, L. 1999.