Mo. Rev. Stat. » Chapter 452
Missouri Revised Statutes

Mo. Rev. Stat. § 452.800 (2026)

Modification of another court's determination

✓ current as of May 2026
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  452.800.  Modification of another court's determination. — Except as otherwise provided in section 452.755, 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 subdivision (1) or (2) of subsection 1 of section 452.740 and:

  (1)  The court of the other state determines that it no longer has exclusive, continuing jurisdiction under section 452.745 or that a court of this state would be a more convenient forum under section 452.770; or

  (2)  A court of this state or a court of the other state determines that neither child, nor a parent, nor any person acting as a parent presently resides in the other state.

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(L. 2009 H.B. 481)

Notes of Decisions
Cited in 1 case, 2017–2017 · leading case: Grega v. Grega, 524 S.W.3d 150 (Mo. Ct. App. 2017).
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Grega v. Grega, 524 S.W.3d 150 (Mo. Ct. App. 2017). · cites it 18× “Section 452.800. 2 Thus, first we must look to the Missouri court’s authority to make an initial custody determination.”
Mo. Rev. Stat. § 452.800(1): 1 case
Grega v. Grega, 524 S.W.3d 150 (Mo. Ct. App. 2017). “Section 452.800. 2 Thus, first we must look to the Missouri court’s authority to make an initial custody determination.”
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