{"data":{"id":"us-mt/40-7-203","jurisdiction":"us-mt","citation":"40-7-203","heading":"Jurisdiction to modify determination.","body":"Except as otherwise provided in 40-7-204, a court of this state may not modify a child custody determination made by a court of another state unless a court of this state has jurisdiction to make an initial determination under 40-7-201(1)(a) or (1)(b) and:\n(1) the court of the other state determines it no longer has exclusive, continuing jurisdiction under 40-7-202 or that a court of this state would be a more convenient forum under 40-7-108; or\n(2) a court of this state or a court of the other state determines that the child, the child's parents, and any person acting as a parent do not presently reside in the other state.","path":["TITLE 40. FAMILY LAW","CHAPTER 7. UNIFORM CHILD CUSTODY JURISDICTION AND ENFORCEMENT ACT","Part 2. Jurisdiction"],"source_url":"https://mca.legmt.gov/bills/mca/title_0400/chapter_0070/part_0020/section_0030/0400-0070-0020-0030.html","current_through":"Montana Code Annotated 2025","vintage":"","retrieved_at":"2026-09-14T04:55:01Z","sha256":"dd26a12d3152a7e413ce210dba0fdb0fd941eae495972cfc8d1b2e7860bb7b21","source_id":"us-mt","stale":false,"prev":"us-mt/40-7-202","next":"us-mt/40-7-204"},"notice":"GroundRules: Original legal text. Not legal advice."}