This is the second post in our six-part series on how California family law addresses cases that cross state lines. Today, we focus on custody disputes between parents living in different states and how the UCCJEA helps create consistency.

Custody and the UCCJEA

Custody disputes can become particularly complicated when parents live in different states. To address these situations, most states, including California, follow the Uniform Child Custody Jurisdiction and Enforcement Act, known as the UCCJEA. This law helps determine which state has the authority to make and modify custody orders so that families are not caught between conflicting rulings.

Which State Has Jurisdiction

Under the UCCJEA, the child's “home state” usually has the authority to issue an initial custody order. In California, a child's home state is the state where the child has lived with a parent or person acting as a parent for at least six consecutive months before the case is filed. California Courts explanation: https://courts.ca.gov/sites/default/files/courts/default/2024-12/btb_23_5f_1.pdf

If no state qualifies as the home state, a court may still take jurisdiction if the child and at least one parent have a significant connection to the state and there is substantial evidence available there about the child's care, schooling, relationships, and overall well-being.

Modification Jurisdiction

When parents are modifying an existing custody order, the UCCJEA applies a related but separate analysis. The state that issued the original order usually keeps jurisdiction to make changes as long as the child or one parent continues to live there and the state still has a meaningful connection to the case.

If the child and both parents have moved away, another state may take over the case. Before that happens, the new state's court must confirm that the original state no longer has authority or has chosen to release jurisdiction. California's jurisdiction rules: https://codes.findlaw.com/ca/family-code/fam-sect-3421

This structure helps prevent conflicting custody rulings and discourages parents from trying to move the case to a different state simply to seek a more favorable outcome.

Enforcing Custody Orders Across State Lines

Once a valid custody order is issued under the UCCJEA, other states that have adopted the Act can recognize and enforce that order instead of reopening the entire case. This cooperation promotes consistency for the child and avoids conflicting orders from courts in different states.

Modifying Custody Orders

In most situations, only the state that issued the original custody order retains the authority to modify it. That state keeps jurisdiction as long as the child or at least one parent continues to live there and there remains a significant connection to the state.

If the child and both parents relocate, another state may be able to take over jurisdiction. The new court must still evaluate the case under UCCJEA standards and confirm that the original state has released jurisdiction or no longer qualifies to keep it.

California's jurisdiction rules: https://codes.findlaw.com/ca/family-code/fam-sect-3421

Practical Scenarios

Here are a few examples of how the UCCJEA works in real situations:

• If one parent moves to a new state with the child, the home state rule will usually still apply.
• If both parents live in different states, the UCCJEA helps courts determine where the case should be heard.
• If the child is present in a different state and there is an urgent situation involving abandonment or safety concerns, that state may issue temporary emergency orders. These orders are limited and are meant to protect the child while jurisdictional issues are addressed.

Key Takeaway

The UCCJEA exists to reduce conflict and provide clarity when parents live in different states. While the process can seem complicated, its purpose is to promote consistency and support what matters most: the well-being of the child.

This is the second post in our six-part series on family law across borders. Next week, we will look at relocation cases involving parents who wish to move out of state with their child.

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