When Two States Both Claim Authority
The framework's answer to two courts claiming the same case is unusual in American procedure: the judges talk to each other directly. The check happens at the outset, the communication is required, and one of the two courts stops.
The rule in short
Interstate custody law requires a court to check, before hearing a case, whether a proceeding concerning the same child is already pending elsewhere. Where one is, the court must stay its own proceeding and communicate with the other court, and it may not exercise jurisdiction if the other proceeding was commenced in a state with jurisdiction under the framework. Parties are required to disclose prior and pending proceedings in their first pleading, on pain of the court declining to act.
American courts do not ordinarily talk to each other about cases. The interstate custody framework is the conspicuous exception, and it exists because the alternative was tested for decades and failed: two courts, each properly seised as far as it knew, each issuing orders, and a family carrying two incompatible documents across a state line.
The disclosure that starts it
A mandatory statement in the first pleading. Each party must state, under oath, where the child has lived for the past five years, with whom, and the names and addresses of those persons.
And every proceeding they know of. Any proceeding concerning the child that the party has participated in, knows has been commenced, or knows is being contemplated by someone claiming custody or visitation rights.
Including proceedings that are not custody cases. Protective order proceedings, child protection cases, adoption and guardianship matters can all bear on the analysis and are disclosable.
The court examines it. This is not a form that goes into a file unread. The court is required to consider the information in deciding whether it may exercise jurisdiction.
Omission has consequences. A party who conceals a pending proceeding risks the court declining to exercise jurisdiction, an order made on incomplete information being unwound, and a costs award. It also does lasting damage to credibility in a case that may run for years.
What happens when two cases exist
The second court stays its proceeding. On learning that a proceeding was previously commenced in another state, the court stays its own case rather than racing to judgment.
It communicates with the other court. Directly. This is a duty on the court, not a request the parties must make, and it typically happens within days.
It may not proceed if the other state has jurisdiction. Where the earlier proceeding is in a state with jurisdiction substantially in conformity with the framework, the second court does not exercise jurisdiction at all.
Unless the other court declines. The first court may determine that the second state is a more appropriate forum and decline in its favor, in which case the case proceeds where the family now is.
If the first state lacks jurisdiction, the second may proceed. Filing first in a state with no jurisdictional basis achieves nothing, which is the answer to the race-to-the-courthouse instinct that the framework was designed to defeat.
| Situation | Who resolves it | Basis |
|---|---|---|
| Two states assert regulatory authority | Each court applying its own rules | No supervising authority exists |
| Two courts hear the same dispute | Preclusion, once one is final | First final judgment binds |
| Two states tax the same income | The resident state's credit | Capped at the home rate |
| Two states claim custody jurisdiction | The uniform statute | Home state priority |
| Two states claim to be the domicile | Each on its own evidence | A person has only one |
How the communication works
Judges speak directly. Usually by telephone, sometimes by video or in writing. It is brisk and practical, and it is aimed at deciding which court will proceed rather than at discussing the merits.
Parties are entitled to be involved. Either by participating in the communication or, where that is not practicable, by being given the opportunity to present facts and legal argument before the jurisdictional decision is made.
A record is made. The parties are entitled to access it. This is what prevents the mechanism from becoming a private arrangement between two judges.
Administrative exchanges need no notice. Courts may exchange schedules, calendars, court records and similar information without the parties, which keeps the logistics from becoming a further layer of litigation.
It resolves quickly. Most simultaneous-proceeding problems are settled within a week or two, which is a striking contrast with the years such conflicts consumed before the framework, and it is the same speed principle that underlies expedited enforcement and what a second court may not reopen.
The recurring surprise in this area is that no institution allocates authority between two states asserting it. Each applies its own rules, in its own courts, on its own timetable. What resolves the overlap is a mixture of constitutional obligations, uniform statutes adopted voluntarily, and the practical fact that one proceeding finishes before the other. Planning has to assume the overlap rather than expect it to be prevented.
What parties should do
Disclose everything, first time. The disclosure is broad and the cost of over-disclosing is nil. The cost of omitting something is a jurisdictional problem and a credibility problem at once.
Tell counsel about every prior proceeding. Including ones that were withdrawn, ones in another country, and ones a relative brought. These are the omissions that surface later.
Do not file defensively to get in first. Filing in a state without a jurisdictional basis wastes the fee and signals forum shopping to the court that will ultimately decide, which is examined in how a child's home state is identified.
Be ready to argue the forum question quickly. Because the communication happens fast, the window in which to make submissions about which state is appropriate is short. Material about where the evidence, the witnesses and the child's life sit should be prepared before it is asked for.
Remember support runs separately. The custody framework's simultaneous-proceeding machinery does not govern support, which has its own rules for resolving competing orders, described in the controlling order when two states have issued one.
It is worth spending a moment on why the disclosure requirement is drafted so broadly, because parties frequently regard it as intrusive and comply reluctantly. Five years of the child's addresses and every adult they lived with is a great deal of information to put in a first pleading, and it can feel like handing the other side a map. The reason is that the entire jurisdictional analysis is built from exactly those facts: the home state is identified from where the child lived and for how long, the significant-connection fallback from where the evidence about the child sits, and the simultaneous-proceeding rule from what else is running. A court cannot apply any of it to a pleading that says only where the parties live now.
The corollary is that the disclosure is the first substantive document in the case rather than a formality. It frames the jurisdictional argument, it is made under oath, and it will be compared against the other parent's version. Preparing it carefully — with dates checked against leases, school records and travel documents rather than reconstructed from memory — is time well spent, and inconsistencies between it and later evidence are among the most damaging things that can happen to a party's credibility in a case where credibility does most of the work.
Finally, a practical observation about what the mechanism means for the pace of a case. Because the check happens at the outset and the communication is quick, a family caught in competing proceedings usually learns within weeks which court will decide. That is genuinely valuable and it is not always experienced as such: the parent whose chosen forum loses often feels the matter was settled by a conversation they were barely part of. The answer is that the conversation decided only the venue, that the venue was determined by rules rather than by preference, and that the case they care about — the one about the child — is still entirely ahead of them. A jurisdictional loss is not a merits loss, and treating it as one is how parents arrive at the substantive hearing already defeated.
Points to carry away
- A first pleading must disclose every prior and pending proceeding about the child.
- A court must examine the pleadings and check for simultaneous proceedings.
- Where another proceeding is pending in a state with jurisdiction, the second court stays and communicates.
- The courts speak directly, and parties are generally entitled to be informed and heard.
- A party who conceals a proceeding risks the court declining jurisdiction and a costs award.
Questions readers ask
What must a first pleading disclose?
The framework requires each party in a custody proceeding to give information, in the first pleading or an attached affidavit, about where the child has lived for the past five years and with whom, and about any proceeding concerning the child that the party has participated in, knows about, or knows of a person claiming custody or visitation rights. It is a substantial disclosure and it is made under oath. Where a party does not have the information, they say so; where they have it and omit it, the consequences are real.
Does the first case filed always win?
Not automatically. The rule is that a court may not exercise jurisdiction where a proceeding was previously commenced in another state having jurisdiction substantially in conformity with the framework — so the earlier case prevails only if that state actually has jurisdiction under the rules. A case filed first in a state with no jurisdictional basis does not block a properly founded case elsewhere. The earlier court may also determine that the second state is a more appropriate forum and decline, which happens more often than people expect.
What are the parties' rights when judges communicate?
Courts are generally required to allow the parties to participate in the communication, or if that is not possible, to be given the opportunity to present facts and legal argument before a decision on jurisdiction is made. A record of the communication is made and the parties are entitled to access it. What courts may do without notice is exchange schedules, calendars, court records and similar administrative information. The distinction matters: substantive discussion about jurisdiction is not supposed to happen behind the parties' backs.
Sources
- 28 U.S.C. § 1738A — Full faith and credit given to child custody determinationslaw.cornell.edu
- Uniform Law Commission — Child Custody Jurisdiction and Enforcement Actuniformlaws.org
- 28 U.S.C. § 1738B — Full faith and credit for child support orderslaw.cornell.edu
- 42 U.S.C. § 663 — Use of Federal Parent Locator Servicelaw.cornell.edu
- National Center for State Courts — Family Law Resourcesncsc.org
- Office of Child Support Services — Interstate Case Processingacf.gov
Right Way Review is a publication, not a law firm. This article states general rules and cites its sources; it is not advice about any particular case, and the law differs by state and changes over time.
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