California child custody law separates the authority to make decisions about a child from the question of where the child lives, decides contested cases using a best-interest standard weighted toward the child’s safety, and builds in specific presumptions and procedures for domestic violence, relocation, and abduction risk. If you are separating or divorcing in California, expect to deal with two custody categories, a mandatory mediation step, and a court that takes its cues from Family Code Section 3011 and the related statutes described below.
The starting point in every case is that children benefit from frequent and continuing contact with both parents.1California Legislative Information. California Code FAM 3020 – Public Policy on Child Custody That principle bends when safety is at issue, and judges have wide latitude to shape orders around a family’s actual circumstances.
Legal Custody and Physical Custody Are Separate
Legal custody is the authority to make major decisions about your child: schooling, medical care, religious upbringing. Joint legal custody means both parents share that authority. Sole legal custody puts it in one parent’s hands.
Physical custody is about where the child lives. Joint physical custody means the child spends substantial time with each parent. Sole physical custody places the child primarily with one parent, with the other typically receiving a visitation schedule.
You can end up with a different arrangement for each category. It’s common for parents to share legal custody while one parent holds primary physical custody, so joint on one axis does not imply joint on the other. When both parents agree to joint custody, the law presumes the arrangement serves the child’s best interest.2California Legislative Information. California Code FAM 3080 – Joint Custody Presumption If one parent objects, that presumption goes away and the court evaluates the case from scratch.
How a Judge Decides a Contested Case
Family Code Section 3011 lists the factors that go into a custody decision. The child’s health, safety, and welfare come first, and the rest flows from there.3California Legislative Information. California Code FAM 3011 – Best Interest of the Child The main considerations:
- Any history of abuse by a parent or someone seeking custody, whether directed at the child, the other parent, or someone in a close relationship with either parent.
- How much time the child already spends with each parent. Courts prefer not to upend a stable routine without good reason.
- Ongoing illegal drug or alcohol abuse. The court can require independent proof, such as law enforcement, medical, or treatment records, before crediting these allegations.
- Which parent is more likely to support the child’s relationship with the other parent. Judges can weigh this heavily between two otherwise similar arrangements.4California Legislative Information. California Code FAM 3040 – Order of Preference for Custody
A judge cannot consider a parent’s sex, gender identity, gender expression, or sexual orientation.4California Legislative Information. California Code FAM 3040 – Order of Preference for Custody If you believe a ruling was influenced by any of those, that is a basis for appeal.
When a Child’s Preference Matters
California does not set a hard minimum age for a child’s input. If a child is mature enough to form a reasonable opinion, the court must consider that preference and give it appropriate weight.5California Legislative Information. California Code FAM 3042 – Wishes of the Child
The threshold that matters procedurally is 14. A child 14 or older has the right to speak directly to the judge about custody or visitation unless the court finds doing so would harm the child. Younger children can address the court if the judge decides it’s appropriate, but they lack that automatic right. Preference is one factor, not a veto. A teenager saying “I want to live with Dad” does not override a finding that the arrangement would be unsafe.
Domestic Violence Changes the Framework
This is one of the strongest protections in the code, and one many people don’t know about until they need it. If the court finds that a parent committed domestic violence within the past five years against the other parent, the child, or the child’s siblings, the law presumes that giving that parent any form of custody, joint or sole, legal or physical, is detrimental to the child.6California Legislative Information. California Code FAM 3044 – Domestic Violence and Custody Presumption
The parent with the finding can try to rebut the presumption, but the bar is high. The court looks at whether that parent has:
- Completed a state-certified batterer’s treatment program
- Completed alcohol, drug, or parenting classes if the court found them appropriate
- Complied with probation, parole, and any protective orders
- Refrained from further acts of domestic violence
- Stayed clear of firearms and ammunition if prohibited from possessing them
Meeting every item still is not enough on its own; the judge must also find that custody with that parent is in the child’s best interest. The general preference for frequent contact with both parents cannot be used to overcome the presumption. Raising this issue early matters because it shifts the entire framework the court applies.
Mediation Comes Before the Judge
If you and the other parent disagree about custody or visitation, you have to attend mediation before you can get a contested hearing.7Justia Law. California Code FAM 3170-3173 – Mediation of Contested Issues Some counties call it mediation and others call it child custody recommending counseling, and the difference is more than semantic.8California Courts. What to Expect From Family Court Mediation
In both versions a neutral professional meets with the parents to build a parenting plan focused on the child. If you reach agreement, it can be written up and turned into a court order. The distinction shows up when you don’t agree. In recommending counties, the mediator sends the judge a written recommendation on custody and visitation. Judges do not always follow it, but it carries weight, and people sometimes walk in without realizing how much is on the line. You can challenge the recommendation at your hearing; prepare accordingly.
Cases involving domestic violence follow a separate protocol, and you can ask that sessions be held with each parent in a separate room.
What You File and What It Costs
The paperwork depends on your relationship. Married parents going through a divorce file the Petition for Dissolution of Marriage (FL-100). Unmarried parents file the Petition for Custody and Support of Minor Children (FL-310). Either way, you must attach a Declaration Under the Uniform Child Custody Jurisdiction and Enforcement Act (FL-105), which establishes California’s authority to make custody orders.9Judicial Council of California. FL-100 Petition – Marriage/Domestic Partnership
The FL-105 asks for each child’s residence history over the past five years, everyone the child has lived with during that period, and any other custody cases involving the child, including restraining orders and dependency proceedings.10Judicial Council of California. FL-105 Declaration Under Uniform Child Custody Jurisdiction and Enforcement Act Errors or omissions here can create jurisdictional problems. Have birth dates and prior case numbers ready before you start.
The filing fee is $435 in most counties, with slightly higher amounts in Riverside, San Bernardino, and San Francisco because of local courthouse construction surcharges.11California Courts. Statewide Civil Fee Schedule Effective January 1, 2026 If you can’t afford it, file a Request to Waive Court Fees (FW-001) and ask the court to waive or reduce the fee.12California Courts. File Your Divorce Forms
Serving the Other Parent
After filing, the other parent must be formally served with the petition, a summons, and a blank response form. You cannot do this yourself. The person who serves the papers has to be at least 18 and cannot be a party to the case.13Judicial Council of California. FL-115 Proof of Service of Summons A friend, relative, or professional process server can do it.
Once the papers are delivered, the server fills out a Proof of Service (FL-115) that gets filed with the court. Without a properly filed proof of service, your case does not move forward.
When You Can’t Find the Other Parent
If you’ve made genuine efforts and still can’t find them, California allows service by publication. You file a declaration describing the steps you took, and if the judge is satisfied you used reasonable diligence, the court orders the summons published in a newspaper most likely to reach the other parent.14California Legislative Information. California Code CCP 415.50 – Service by Publication It’s a last resort and adds time, but it stops a parent from stalling the case by disappearing.
Emergency Orders When You Can’t Wait
Standard custody cases take weeks or months. Some situations can’t. California allows a parent to request an emergency custody order without giving the other parent advance notice, but only under narrow conditions. The court will not issue one unless the parent shows either immediate harm to the child or an immediate risk that the child will be taken out of California.15California Legislative Information. California Code FAM 3064 – Ex Parte Custody Orders
Immediate harm is defined, not vague. The statute specifically includes recent or ongoing domestic violence and sexual abuse of the child. Courts also consider illegal access to firearms, including possession in violation of a restraining order or condition of probation.
If granted, the emergency order takes effect immediately. It’s temporary. The other parent must be served, and a follow-up hearing gives both sides a chance to be heard. Bring documentation: medical records, police reports, CPS reports, communications. An emergency order that isn’t backed up at the follow-up hearing will likely be dissolved.
Changing an Existing Custody Order
Custody orders are not permanent. To modify a joint custody order, at least one parent must petition the court and show that the change is in the child’s best interest.16California Legislative Information. California Code FAM 3087 – Modification of Joint Custody Order If the other parent opposes it, the judge must explain the ruling in writing or on the record.
In practice, the parent asking for a change usually needs to show a significant change in circumstances since the last order: a new work schedule, a relocation, evolving needs as the child grows, safety concerns that weren’t present before. If both parents agree, you can file a stipulation and the court will generally approve it as long as the new arrangement still serves the child. Either way, the existing order stays in effect until a new one is issued. Do not stop following it because you have filed a modification request.
Moving With the Child
Move-away cases generate more conflict than almost any other custody dispute. When a custodial parent wants to relocate and the move would disrupt the current visitation schedule, the other parent can ask the court to block it.
If your custody order includes a notice provision, you must notify the other parent at least 45 days before a proposed move of more than 30 days. Notice goes by mail with return receipt requested to the other parent’s last known address, with a copy to their attorney.17California Legislative Information. California Code FAM 3024 – Notice of Proposed Change of Residence Skipping this step undermines your credibility with the court.
When the move is contested, the court works through the factors set out by the California Supreme Court in Marriage of LaMusga:18Stanford California Supreme Court Historical Society. Marriage of LaMusga
- The child’s interest in stability and continuity in the current arrangement
- How far the move would take the child from the other parent
- The child’s age and needs, since younger children and established routines face greater disruption
- The quality of the child’s bond with each parent and how the move would affect it
- Whether the parents can cooperate and whether the relocating parent would genuinely support ongoing contact
- The reasons for the move, such as a legitimate job or family opportunity versus interference with the other parent’s relationship
- The child’s wishes, if they’re old enough to express a meaningful preference
A parent with sole physical custody generally has more room to relocate than one sharing joint physical custody, but nothing is automatic. The court has the final word.
Preventing Abduction
When a parent poses a flight risk, courts have a broad set of tools. Family Code Section 3048 lists the factors for assessing that risk, including whether a parent has previously taken or hidden a child, lacks ties to California, has strong connections to another country, or has been liquidating assets and closing accounts.19California Legislative Information. California Code FAM 3048 – Child Abduction Prevention
If the court finds credible risk, available measures include supervised visitation, a financial bond large enough to deter flight and fund recovery, travel restrictions outside the county or state, surrender of passports, and orders prohibiting a parent from applying for a new passport for the child. If you believe the other parent may try to leave with your child, raise the issue early and bring supporting evidence. That gives the court the strongest basis to act before anything happens.