If you're facing the reality of dividing custody of your child—whether you're recently separated or modifying an existing arrangement—understanding California law is essential. Most urgently, you and your child's other parent will have to figure out where your child will live and who will have the right to make important decisions about the child's upbringing.
Here's a rundown of key topics California parents need to know about, including the different types of custody arrangements, visitation rights, and the statutory factors judges consider when determining what's in the best interests of the child.
California law establishes that both parents have an equal right to custody and that all custody decisions must prioritize the best interest of the child. The state strongly favors maintaining "frequent and continuing contact" between both parents and their child whenever possible. (Cal. Fam. Code §§ 3010(a), 3020; (2025).)
There are two types of custody in California: "legal custody" and "physical custody." With each type, parents may have "joint custody," or one parent may have "sole custody."
Legal custody refers to a parent's right to make the important decisions in a child's life on issues like education, medical treatment, and religious upbringing. When a parent has sole legal custody, that means the parent may make those decisions unilaterally, without getting the other parent's consent. When parents have joint legal custody, they both have a right to be involved in the decision-making process.
Joint legal custody is by far the preferred outcome in custody cases, because it enhances the active participation of both parents in the child's life. But it can lead to conflict if the parents disagree. To avoid confusion about parental rights in joint custody situations, California law requires judges to spell out the specific circumstances when both parents must consent to a decision—and the consequences if one of them fails to do that. In all other situations, either parent can make decisions on their own. (Cal. Fam. Code § 3083 (2025).)
For example, the judge might order that both parents must be involved in deciding which school children will attend or which religion they'll be raised in. But the judge might leave some of the details open—such as exactly when and where the child will attend religious services. That way, the parent who has the child at the time can decide those details.
Physical custody refers to where a child lives. It also involves parents' responsibility for the routine daily care and control of their children, such as bathing, disciplining, and preparing meals.
When a parent has sole physical custody, the child lives with that parent (the "custodial parent"), while the noncustodial parent will usually have visitation time (more on that below).
When parents have joint physical custody, the child will spend a significant amount of time living with each of them—but not necessarily an exactly equal amount of time. As a practical matter, joint physical custody works best when the parents live close to each other. This tends to reduce problems such as where the child attends school and participation in sports or other after-school activities.
When both parents agree to joint legal and physical custody, a judge will presume joint custody is in the best interest of the child. When a request for joint custody is denied, a parent can ask the court to state its reasons for the denial. A judge may order joint legal custody without granting joint physical custody. (Cal. Fam. Code §§ 3080, 3082, 3085 (2025).)
A judge may award joint custody even if only one parent requests it. To help make that decision, a judge may order a custody evaluation to help determine whether joint custody would be in the child's best interests. (Cal. Fam. Code § 3081 (2025).)
Parents always have the option of agreeing on how they'll handle child custody and visitation. But to have the agreement made part of a court order, they'll need to spell out the details in a written "parenting plan" (sometimes called a "custody and visitation plan" or "custody schedule"), sign it, and submit it to the court. Judges will generally approve these agreements as long as they appear to be in the child's best interests.
When parents can't agree on custody issues, a judge steps in to make the decision. The judge's job is to decide what's best for the child. Under California law, a judge must consider all relevant factors, including:
(Cal. Fam. Code §§ 3011, 3020 (2025).)
California law explicitly prohibits judges from considering a parent's sex, gender identity, gender expression, or sexual orientation when they're deciding which custody arrangements would be in the children's best interests. (Cal. Fam. Code § 3011(b) (2025).)
Also, a parent's immigration status won't disqualify that parent from obtaining custody. (Cal. Fam. Code § 3040(b) (2025).)
When a court has made a finding that a parent committed domestic violence within the past five years, a judge will assume that it's not in the child's best interests for the abusive parent to have sole or joint legal or physical custody. The abusive parent can overcome the presumption by proving that giving them custody is truly in the child's interest. The judge will also consider whether the abusive parent completed a batterer's treatment program and other counseling, complied with probation and restraining order conditions, and refrained from further acts of domestic violence. If a judge decides to grant an abusive parent custody, the judge must provide specific written findings explaining how the presumption against custody was overcome. (Cal. Fam. Code § 3044) (2025).)
Learn more about how domestic violence affects child custody in California.
Under California law, a judge may find that a child has more than two parents if recognizing only two parents would be detrimental to the child. (Cal. Fam. Code 7612(c) (2025).) The law is meant to protect children who have meaningful relationships with more than two adults who act as parents.
Here are a couple of examples of how this might work:
Once a judge has recognized that a child has more than two parents, the child's best interests will be the controlling factor when the judge allocates custody and visitation between the parents. Among other factors, the judge will need to consider the child's need for stability by maintaining the patterns of care and emotional bonds that have been established between the child and the parents. (Cal. Fam. Code § 3040(f) (2025).)
Under California law, if a child is mature enough to form an intelligent preference as to custody and visitation, the judge must consider and give "due weight" to the child's wishes.
When it wouldn't be appropriate for children to testify in court as witnesses, judges must work out another way to get the kids' input—often by speaking with them in the judge's chambers. Either way, parents ordinarily shouldn't be present while their child is expressing a custody preference, unless the judge has specifically found that their presence wouldn't be detrimental to the child's well-being. (Cal. Fam. Code § 3042; California Rule of Court 5.250 (2025).)
Judges may also appoint someone (such as a social worker) to serve as a "guardian ad litem" to advocate for the child and report to the court about the child's preferences. Sometimes, particularly in very contentious cases, judges may decide that children need their own attorney to protect their interests.
California, like many other states, has a specific public policy of ensuring that when parents split up, their children have "frequent and continuing contact" with both parents. Toward that end, state law requires that noncustodial parents receive visitation rights as long as that would be in the children's best interests. (Cal. Fam. Code §§ 3020(b), 3100(a) (2025).)
Courts try to set up visitation schedules that will ensure the noncustodial parent and the child will have enough time together to maintain their relationship. A common setup may include overnight visits on alternating weekends, splitting holidays and school vacations between the parents, and extended visitation during the summer. But there are many potential variations depending on the child's and the parents' schedules. Ideally, parents will work together to create a schedule that best suits their circumstances and the child's needs, rather than leave that decision to a judge.
To avoid potential problems, the visitation schedule should be highly specific. So these plans typically allocate transportation duties and include pick-up and drop-off locations and times.
If a domestic violence protective order has been issued against a noncustodial parent, the judge must consider whether it would be in the child's best interests to:
Also, judges must fashion any visitation order to protect all of the family members and minimize any opportunities for further abuse, including "coercive control" (such as threats or other controlling behaviors).
With supervised visitation, the court appoints someone to oversee the visitation session, which is often conducted in a court-approved facility. Parents may suggest someone who would be appropriate to supervise visitation, but the court doesn't have to appoint that person. It's more typical for courts to appoint a social worker or other trained individual. The supervisor's job is to watch and listen, without interacting with the parent or child unless necessary to ensure that the child is comfortable and safe.
Sometimes the court will put additional safeguards in place. For example, if a judge grants supervised visitation to a noncustodial parent with a history of alcohol abuse, that parent may be required to abstain from consuming alcohol for a period of time before the visits.
(Cal. Fam. Code § 3100(b) (2025).)
California follows a law called the Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA), which is used by almost every state. Under this law, California courts can only make custody decisions for children who have lived in California with a parent for at least six months right before the custody case starts. (Cal. Fam. Law §§ 3402, 3421 (2025).)
The rules in UCCJEA are complicated, and there are many exceptions to the basic rules. In general, once courts in California have issued custody orders, they continue to have exclusive jurisdiction over that child's custody, unless strict legal requirements are met—such as when both parents and the child no longer live in the state. That means that a California judge may not modify a custody order from another state unless the strict requirements for changing jurisdiction have been met, or vice versa. (Cal. Fam. Law §§ 3422, 3423 (2025).)
The UCCJEA includes a provision for what's known as "temporary emergency jurisdiction." Typically, this allows a state's courts to issue orders concerning custody of a child who's in the state at the moment and has been abandoned or needs emergency protection from actual or threatened abuse or mistreatment—even if the child doesn't live in that state with a parent. California's version of this provision adds that the state's courts may also issue emergency custody orders if a child who's currently in the state hasn't been able to get gender-affirming health care or mental health care. (Cal. Fam. Law § 3424 (2025).)
The evolving needs of parents or children—especially as kids get older—may prompt parents to seek changes to the parenting plan. For instance, a teenager may have a good reason to want to live with the noncustodial parent, such as intractable conflicts with the custodial parent's new spouse and children. Or a parent's work schedule might have changed, making it difficult or impossible to be available under the current visitation schedule.
But you aren't allowed to simply change the parenting schedule on your own or withhold visitation. Otherwise, the other parent may ask the court to enforce the existing custody order, and you could face serious consequences, including contempt charges or losing custody.
If you want to make changes to a current custody order in California, you must file a motion (written legal request) seeking a modification. As with an original custody order, you and the other parent may agree on a change, but you'll need to submit your written agreement for a judge's approval.
Without an agreement, a judge will have to decide whether to grant the modification. California courts have laid out rules for granting or denying custody modifications.
Custody and parenting time are obviously very serious issues. Because most lay people are unfamiliar with California's laws and court procedures, having to deal with them can add more anxiety and tension to an already emotionally charged situation. And remember, it's not just the parents who are feeling the strain of a custody battle. The children are impacted as well, often more deeply than some people may realize.
It's always best if you and the other parent can resolve your disagreements without a court battle, either on your own or in child custody mediation. But if that's simply not possible, it may well be in your best interest to at least speak with a knowledgeable family law attorney who can explain your rights and responsibilities, and the best way to move forward.