The Parental Kidnapping Prevention Act, codified at 28 U.S.C. § 1738A, is a 1980 federal law that forces every state to follow one set of rules when deciding which court controls an interstate child custody dispute. It sets a jurisdictional pecking order among states, requires every state to honor valid custody orders issued elsewhere, and sharply limits when a new state can change an existing order. Congress passed it after years of parents moving children across state lines hoping a new judge would rewrite custody in their favor.
Which State’s Court Decides Custody
The PKPA gives first priority to the child’s “home state,” meaning wherever the child lived with a parent for at least six consecutive months right before the case was filed. For infants under six months old, the home state is wherever the child has lived since birth.1Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations
If no state qualifies as the home state, a court can take the case under a “significant connection” test. That requires the child and at least one parent to have a meaningful relationship with the state beyond mere physical presence, plus substantial evidence available in that state about the child’s care and personal relationships. Courts treat this as a backup. A state with a significant connection cannot claim jurisdiction if a home state exists and is willing to act.1Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations
Practically, this anchors the case to the place where the child’s life is most established and where witnesses and records are most accessible. Without the rule, a parent who relocated could immediately file for custody in the new state while the other parent scrambled to respond from hundreds of miles away.
The Narrow Emergency Exception
The PKPA carves out one exception to its jurisdictional hierarchy. A court may step in immediately when a child is physically present in the state and has been abandoned, or when emergency protection is needed because the child, a sibling, or a parent has been subjected to or threatened with abuse.2Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations
The emergency power is temporary. An emergency order does not transfer long-term jurisdiction away from the home state. The judge who enters it is expected to contact the home state judge to coordinate next steps and determine how long the emergency order should last.3Office of Justice Programs. The Uniform Child-Custody Jurisdiction and Enforcement Act The home state court can decide to relinquish jurisdiction if the emergency state is a better forum going forward, but until that happens, the emergency order is a stopgap. The provision exists so a parent fleeing domestic violence with a child can get protection in the state where they land without waiting months to establish residency.
Every State Must Honor a Valid Custody Order
The PKPA’s core command is simple. Every state must enforce custody and visitation orders made by courts in other states, so long as the issuing court followed the federal jurisdictional standards. This obligation comes from 28 U.S.C. § 1738A(a), which extends the Constitution’s Full Faith and Credit Clause specifically to custody decisions.2Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations
Recognition is mandatory, not discretionary. When a parent presents a valid custody order from another state, the local court must treat it as binding. A judge in the new state cannot revisit the merits or decide that a different arrangement would be better. The order stands until the court that issued it changes it or gives up jurisdiction. The rule covers all custody arrangements: visitation schedules, residential placements, and sole or joint custody. A parent who violates a recognized out-of-state order can face contempt in the enforcing state, and most states also treat serious violations as criminal offenses. Penalties vary by state, ranging from misdemeanors to felonies depending on the circumstances.
Registering an Out-of-State Order
Although every state must honor a valid custody order on its face, the practical mechanism for enforcement usually starts with registering the order in the new state. Under the UCCJEA’s registration procedures, which most states have adopted, you file a copy of the custody order with the new state’s court. The other parent then receives notice and has a window to contest the registration on narrow grounds, such as arguing that the original court lacked jurisdiction or that the order has since been vacated or modified.3Office of Justice Programs. The Uniform Child-Custody Jurisdiction and Enforcement Act
If no one contests the registration within the allowed period, the order is confirmed and becomes directly enforceable in the new state as if it had been issued there. Registration fees vary by county, so check with the local clerk’s office. Registration is an administrative step for enforcement. It does not reopen the underlying custody decision.
When Another State Can Modify a Custody Order
The PKPA puts a heavy thumb on the scale against second-guessing. Once a court issues a valid custody order, that court keeps exclusive authority to modify it as long as the state remains home to the child or to any party in the case. Under this “continuing jurisdiction” rule, even if a child moves to a new state, the original court stays in charge as long as one parent still lives in the original state.4Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations
A second state can modify a custody order only if two conditions are both met: the new state has jurisdiction under the PKPA’s rules, and the original court either no longer has jurisdiction or has formally declined to exercise it.5Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations The original court may decline jurisdiction because both parents and the child have left the state, making it an inconvenient forum. That decision, though, belongs to the original court, not the new one.
This is where custody disputes get stuck most often. A parent moves to a new state, wants to change the custody arrangement, but the other parent still lives in the original state. The new state cannot touch the order. The parent seeking changes must go back to the original court or persuade that court to give up jurisdiction. Any modification order issued by a state that jumps the line is legally void and unenforceable.
No Simultaneous Proceedings
The PKPA also blocks a state from starting a custody proceeding while another state is already exercising jurisdiction over the same child. Under subsection (g), if one state’s court is already handling a custody case consistently with the PKPA, no other state may open a competing proceeding.6Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations This closes off the scenario that originally prompted Congress to act: two states issuing conflicting custody orders at the same time, with each parent waving a different order.
Locating a Missing Child Through Federal Resources
The PKPA opened a federal database to help locate children taken across state lines. The Federal Parent Locator Service (FPLS), authorized under 42 U.S.C. § 663, gives approved officials access to the most recent address and employer information for a parent or child involved in a kidnapping or custody enforcement case.7Office of the Law Revision Counsel. 42 USC 663 – Use of Federal Parent Locator Service in Connection With Enforcement or Determination of Child Custody in Cases of Parental Kidnaping of Child
Individual parents cannot query the FPLS themselves. Access is limited to state agents or attorneys with authority to enforce custody or visitation orders, courts with jurisdiction over custody or visitation cases and their agents, and federal or state investigators authorized to prosecute unlawful taking or restraint of a child. The FPLS is also available to the U.S. Central Authority for international abduction cases under the Hague Convention and to the Office of Juvenile Justice and Delinquency Prevention.8Office of the Law Revision Counsel. 42 USC 663 – Use of Federal Parent Locator Service in Connection With Enforcement or Determination of Child Custody in Cases of Parental Kidnaping of Child If your child has been taken by the other parent, your attorney or local law enforcement can request an FPLS search through the proper state channels. The database draws on federal records including Social Security and tax data, which makes it more effective than private searches.
Federal Criminal Consequences
The PKPA explicitly declared that the federal Fugitive Felon Act (18 U.S.C. § 1073) applies to parental kidnapping cases. When a parent flees across state lines to avoid prosecution under a state felony kidnapping or custodial interference statute, federal authorities can issue an unlawful-flight-to-avoid-prosecution (UFAP) warrant. That warrant authorizes the FBI to help locate and apprehend the fleeing parent.9Office of the Law Revision Counsel. 18 USC 1073 – Flight to Avoid Prosecution or Giving Testimony
When a parent takes a child out of the country, a separate federal statute applies. Under 18 U.S.C. § 1204, the International Parental Kidnapping Crime Act, removing a child from the United States or retaining a child outside the country with intent to obstruct the other parent’s custody rights is a federal felony punishable by up to three years in prison.10Office of the Law Revision Counsel. 18 USC 1204 – International Parental Kidnapping The statute applies to children under 16 and covers both court-ordered custody and custody rights arising by operation of law.
The law provides limited defenses in international cases. A parent can raise an affirmative defense if they were acting under a valid court order, fleeing domestic violence, or failed to return the child due to circumstances beyond their control and notified the other parent within 24 hours.10Office of the Law Revision Counsel. 18 USC 1204 – International Parental Kidnapping These are affirmative defenses, so the parent bears the burden of proving them at trial.
Why PKPA Disputes Stay in State Court
The PKPA is a federal law, so it might seem you could take a PKPA dispute to federal court. You cannot. In Thompson v. Thompson (1988), the U.S. Supreme Court held that the PKPA does not create a private right of action in federal court. A parent cannot file a federal lawsuit asking a federal judge to decide which of two conflicting state custody orders is valid.11Justia US Supreme Court. Thompson v. Thompson, 484 U.S. 174 (1988)
The Court reasoned that Congress designed the PKPA to work like the Full Faith and Credit Clause: it tells state courts what they must do, but it does not create a separate federal forum for enforcing those obligations. The statute is addressed to states, not to individual parents.11Justia US Supreme Court. Thompson v. Thompson, 484 U.S. 174 (1988) Even when a state court is ignoring the PKPA, the remedy is an appeal within the state court system. Federal involvement comes only on the criminal side, through the Fugitive Felon Act or the International Parental Kidnapping Crime Act.
How the PKPA and the UCCJEA Fit Together
The PKPA is federal law. The Uniform Child-Custody Jurisdiction and Enforcement Act (UCCJEA) is a model state law that has been adopted by every state, the District of Columbia, and most U.S. territories. They share the same core concepts: home state priority, continuing jurisdiction, and mandatory recognition of other states’ orders. Conflicts are rare because the UCCJEA was drafted to align with the PKPA.
When the two do conflict, the PKPA controls. The Supremacy Clause overrides any inconsistent state provision, so if a state court follows a UCCJEA rule that contradicts the PKPA, the federal standard wins.1Office of the Law Revision Counsel. 28 USC 1738A – Full Faith and Credit Given to Child Custody Determinations
The UCCJEA is broader in some respects. It covers detailed procedural steps for local courts, enforcement tools like pickup warrants, and the recognition of international custody orders. The PKPA focuses on the narrower question of which state gets to decide and when others must stand down. The PKPA is the ceiling no state can exceed; the UCCJEA is the operating manual for the day-to-day work of interstate custody cases. Together they make a custody order issued in one state carry real weight everywhere else, and keep a parent from gaining an advantage by crossing a state line.