Montana Must Treat a Foreign Country as a “State” Under the UCCJEA When Determining Home-State Custody Jurisdiction

Case: In re the Parenting of R.A.A., 2026 MT 83 (Mont. Apr. 21, 2026)
Court: Supreme Court of Montana
Key holding: Montana lacked jurisdiction to enter an initial parenting plan because Montana was not the child’s UCCJEA “home state”; the Court further clarified that Montana courts should, “under ordinary circumstances,” treat a foreign country as if it were a U.S. state when applying the UCCJEA’s jurisdictional rules.

1. Introduction

This appeal arose from a cross-border parenting dispute involving Jonathan Edward Allen (“Father”) and Petronella Gerline (Van Oosterom) Allen (“Mother”), and their minor child R.A.A. After the family had lived in Montana, Mother returned to the Netherlands with the child in August 2023 without Father’s knowledge or consent. Mother later initiated divorce/custody proceedings in the Netherlands. Father, after a substantial delay, pursued a Hague Convention return petition in the Netherlands; Dutch courts concluded the removal was wrongful but denied return because the one-year period had elapsed and the child had become settled in the Netherlands.

Father then filed in Montana District Court an emergency motion for temporary custody and a petition for a permanent parenting plan. The District Court denied the emergency relief and dismissed the parenting petition without prejudice, ruling Montana no longer had jurisdiction because it was not the child’s “home state” under Montana’s UCCJEA.

Central issue on appeal: whether Montana courts had subject-matter jurisdiction to make an initial custody determination—specifically, whether Montana was the child’s “home state” under § 40-7-201, MCA.

2. Summary of the Opinion

The Montana Supreme Court affirmed. It held:

  • Montana was not the child’s “home state” at the commencement of Father’s Montana proceeding because the child had not lived in Montana for the required six consecutive months immediately before filing, and had been absent for roughly 25 months.
  • The Hague Convention did not supply custody jurisdiction or override UCCJEA rules; Hague return proceedings are a provisional mechanism to identify the appropriate forum, not to decide custody merits.
  • The Court clarified that Montana courts should treat a foreign country as if it were a U.S. state for UCCJEA jurisdictional analysis, consistent with the statute’s plain language and the UCCJEA’s international design.
  • The dismissal “without prejudice” was nevertheless final and appealable because it conclusively determined lack of subject-matter jurisdiction at the time of filing; the Court declined to sanction Father.

3. Analysis

A. Precedents Cited

In re A.V.R., 2025 MT 162

The Court relied on In re A.V.R. for the standard of review: statutory interpretation and application are reviewed for correctness, while factual findings are reviewed for clear error. This framing mattered because the appeal turned primarily on the correct application of UCCJEA jurisdiction statutes (a legal question), not on disputed historical facts.

Monasky v. Taglieri, 589 U.S. 68 (2020)

Monasky v. Taglieri was used to explain the Hague Convention’s function and how ICARA implements it in U.S. law. The Montana Supreme Court drew a key boundary from Monasky: the Hague Convention’s “return” remedy is provisional—it determines the appropriate forum for custody litigation, not the custody arrangement itself. This supported rejecting Father’s argument that a wrongful-removal finding should effectively re-anchor jurisdiction in Montana.

Lozano v. Montoya Alvarez, 572 U.S. 1 (2014)

Cited through Monasky, Lozano v. Montoya Alvarez reinforced the Hague Convention’s purpose—addressing international abductions during domestic disputes—and contextualized the “one-year” framework. This mattered because Dutch courts denied return based on the treaty’s “settled” exception after the one-year period, undercutting Father’s attempt to use the Hague findings as a substitute for UCCJEA jurisdiction in Montana.

In re A.H.S., 2025 MT 57

In re A.H.S. provided the Court’s modern articulation of the UCCJEA’s goals: avoiding re-litigation, forum shopping, and jurisdictional conflict; prioritizing home-state jurisdiction; and providing predictable criteria for jurisdiction. The Court used this precedent to emphasize that Father’s Montana filing functioned as a collateral attack on another competent jurisdiction’s custody proceedings—precisely what the UCCJEA aims to prevent.

In re Marriage of Sampley, 2015 MT 121

In re Marriage of Sampley supported the “bright-line” understanding of “home state”: six months of integration into a community is the Legislature’s proxy for a stable jurisdictional anchor. The Court applied that bright-line concept to conclude Montana’s connection had lapsed long before Father filed.

B. Legal Reasoning

1) The Hague Convention finding did not confer Montana custody jurisdiction

Father focused on the Dutch Hague determination that the child was wrongfully removed from the United States. The Court acknowledged that wrongful removal is central to Hague analysis, but it held that the Hague Convention does not decide custody or override domestic jurisdiction rules. The decisive point was the treaty structure:

  • If a petition is brought within one year, return is generally mandatory.
  • After one year, return may be denied if the child is “now settled in its new environment.”

Once Dutch courts denied return based on settlement, Montana could not treat the wrongful-removal finding as a jurisdiction-restoring device. Put simply: Hague determines forum; UCCJEA determines custody-jurisdiction; neither automatically displaces the other’s function.

2) UCCJEA “home state” controlled—and Montana no longer qualified

The Court applied the governing statute: § 40-7-201(1)(a), MCA, which grants initial custody jurisdiction only if Montana is the child’s home state on the filing date or was the home state within the previous six months with a parent still living in Montana. “Home state” is defined in § 40-7-103(7), MCA, as where the child lived with a parent for at least six consecutive months immediately before commencement.

On these facts, the child had been absent from Montana for nearly 25 months at filing. That timeline foreclosed home-state jurisdiction. The opinion treated this as a straightforward statutory application—consistent with the bright-line rule described in In re Marriage of Sampley.

3) International application: foreign countries are treated like U.S. states under the UCCJEA

The Court emphasized that the UCCJEA explicitly contemplates international cases and requires Montana courts to treat a foreign country as if it were a U.S. state for applying UCCJEA jurisdiction and enforcement rules. The Court’s significant clarification was this directive:

Clarification: “We now clarify that under ordinary circumstances Montana courts should treat a foreign country as if it were a state of the United States for the purposes of applying the UCCJEA according to the plain language of the statute.”

This clarification matters beyond the case’s outcome: it signals that Montana courts should not approach foreign custody proceedings as legally “other” in a way that invites duplicative litigation. Instead, courts should run the same jurisdictional analysis they would run if the competing forum were Idaho or Washington—subject to the UCCJEA’s safeguards (e.g., substantial conformity and public policy exceptions in enforcement contexts).

4) “Unjustifiable conduct” did not create a Montana workaround

Father cited § 40-7-109, MCA (unjustifiable conduct). The Court explained why it did not help: that statute addresses situations where a party’s wrongdoing is used to manufacture jurisdiction in Montana, requiring Montana to decline jurisdiction in certain circumstances. It does not empower Montana to override another jurisdiction’s authority or to resurrect Montana home-state jurisdiction after it has lapsed.

The Court also observed that the anti-relitigation principle of the UCCJEA would be undermined if parties could “collaterally attack” foreign or out-of-state proceedings by simply refiling in Montana after losing elsewhere.

5) Finality and appealability despite “without prejudice” dismissal

The Court rejected Mother’s argument that the dismissal without prejudice was unappealable. Because the order conclusively decided subject-matter jurisdiction at the time the Montana case commenced, it was final for appellate purposes even if future circumstances could change (and thus permit refiling).

C. Impact

  • Stronger jurisdictional discipline in international parenting disputes. The Court’s clarification reinforces that Montana’s UCCJEA analysis is not relaxed just because the competing forum is abroad.
  • Reduced incentives for parallel filings and “second bites.” By characterizing Father’s Montana attempt as the kind of re-litigation the UCCJEA seeks to discourage, the decision signals skepticism toward duplicative litigation after adverse outcomes elsewhere.
  • Practical consequences for delayed Hague filings. Although the Court did not impose a penalty for delay, the decision illustrates a real-world consequence: delay can allow a child to become “settled” abroad (defeating return under the Hague Convention) and can allow the original state to lose home-state jurisdiction under the UCCJEA.
  • Clearer pathway for enforcement/recognition questions. The opinion distinguishes (i) Montana’s lack of initial jurisdiction from (ii) separate proceedings about recognizing/enforcing a foreign custody determination (including “substantial conformity” issues), which were expressly not before the Court.

4. Complex Concepts Simplified

  • UCCJEA: A uniform state-law framework deciding which court gets to decide custody, designed to avoid conflicting orders across jurisdictions.
  • Home state (UCCJEA): Usually the place the child lived with a parent for the last six consecutive months immediately before the case is filed. It is a bright-line rule meant to reduce forum fights.
  • Habitual residence (Hague Convention): A treaty concept used to identify the country from which a child was wrongfully removed and to determine whether return should be ordered; it is not itself a custody award.
  • “Settled in the new environment” (Hague Article XII): Even if removal was wrongful, after one year a court may deny return if the child is established in the new country (school, friends, stability).
  • Temporary emergency jurisdiction: A narrow UCCJEA tool allowing short-term protective orders in urgent situations; it does not generally authorize a full, permanent custody determination when home-state jurisdiction lies elsewhere.
  • Unjustifiable conduct (§ 40-7-109, MCA): Prevents a party from benefitting from wrongdoing to create Montana jurisdiction; it is not a mechanism to seize jurisdiction from a proper forum.
  • “Treat a foreign country as a state” (UCCJEA international provisions): For deciding jurisdiction (and, in many circumstances, enforcement), Montana analyzes a foreign country similarly to another U.S. state—reducing conflict and duplicative litigation.

5. Conclusion

In re the Parenting of R.A.A. reaffirms the UCCJEA’s central promise: custody jurisdiction is primarily governed by a predictable home-state rule, not by equitable appeals to wrongful removal once the statutory timeline has lapsed. The Court’s key doctrinal clarification—that Montana courts should treat foreign countries as if they were U.S. states for UCCJEA analysis—strengthens uniformity in international custody disputes and discourages collateral attacks through re-filing in Montana after foreign proceedings have progressed. The decision underscores a practical lesson with jurisdictional force: in cross-border abduction contexts, delay can shift both Hague outcomes and UCCJEA jurisdiction away from Montana.