What Is a JCCP? California's Version of an MDL

By Steve Levine · Updated August 5, 2026 · 6 min read

Quick Answer

A JCCP — a Judicial Council Coordination Proceeding — is California's way of putting related lawsuits filed in different counties in front of a single judge. It is the state-court cousin of a federal MDL, and the same warning applies to both: it is not a class action. Your case stays your case, decided on your own facts. There is no fund to claim from and no form that adds you to one.

On this page

What a JCCP actually is
What the number means
How cases get coordinated
JCCP vs. MDL: the difference that matters
What it means if your case is in one
Frequently asked questions
Sources

What a JCCP actually is

When a lot of people sue the same company over the same thing, their lawsuits do not all land in the same courthouse. One is filed in Los Angeles, another in Alameda County, a third in San Diego. Left alone, three different judges would rule on the same questions, sometimes in three different ways, and the same witnesses would be deposed over and over.

California's fix is coordination. Under the state's coordination statute, related civil actions pending in different California superior courts can be pulled together and assigned to one judge. The result is a Judicial Council Coordination Proceeding, named for the Judicial Council of California, the branch's policymaking body, which administers the process.

The most important thing to understand about coordination is what it does not do. It does not merge the cases into one lawsuit. It does not create a class, appoint someone to represent you, or open a settlement fund. Every coordinated case keeps its own plaintiff, its own facts, and its own damages, and is ultimately valued on its own. Coordination is a scheduling and efficiency device, not a resolution.

What the number means

You will usually see these written as a number: JCCP 5255, JCCP 4955. The number is assigned in sequence when the petition is granted, the same way federal proceedings get numbers like MDL 3047. It is a filing label and nothing more.

A number does not tell you how many cases are in the proceeding, how strong they are, or how close anyone is to being paid. When you see a page or an ad citing a JCCP number as if it were proof of an imminent payout, the number is not doing that work.

How cases get coordinated

The process starts with a petition to the Chair of the Judicial Council. It can come from the presiding judge of a court where one of the cases is pending, from a party who first gets that judge's permission, or from all the plaintiffs or all the defendants in an action. The petition has to be backed by a declaration showing the cases are complex and meet the statutory standard.

The Chair then assigns a judge to decide whether the cases really are complex and whether coordinating them makes sense. That judge weighs a list of factors the statute spells out: whether the shared question is significant and predominates, the convenience of parties, witnesses and counsel, how far along the individual cases already are, the courts' calendars and resources, the risk of duplicative or conflicting rulings, and whether the cases might settle on their own if coordination were denied. If coordination is granted, a judge is assigned to preside over the coordinated cases.

The proceeding is not sealed shut once it exists. A lawsuit filed later that raises the same questions can be identified as a potential add-on case and folded in. Cases can also leave: the assigned judge can send an action back to the court it came from, though not over a party's objection unless the circumstances that justified coordination have materially changed.

JCCP vs. MDL: the difference that matters

The two proceedings solve the same problem in two different court systems. A JCCP coordinates cases filed in California state courts. A federal multidistrict litigation, or MDL, coordinates cases filed in federal courts anywhere in the country, and it is created by a panel of federal judges — the JPML — rather than by the Judicial Council.

The difference that actually changes outcomes is what happens at trial. A federal MDL judge handles the pretrial stage — discovery, expert rulings, test trials — and then cases that have not resolved go back to the district where they were filed to be tried by a different judge. That send-back has its own name, MDL remand. California's statute is written differently: it asks whether one judge hearing the actions for all purposes would promote the ends of justice. The coordination judge can carry a case all the way through trial.

One more thing trips people up: a single mass injury can generate both at once, and often does. The social media adolescent addiction litigation is running in a federal MDL and in a California JCCP simultaneously, with different cases in each. Being in one has no bearing on the other.

What it means if your case is in one

If you already have a lawyer, coordination is mostly invisible to you. Your attorney handles the filings and will tell you what the assigned judge's orders require. Your case number may change and your hearings may move to a different county, but the claim itself is unchanged.

If you do not have a lawyer, the thing to know is that there is nothing here to sign up for. A JCCP is not an enrollment window, and no form on any website adds you to one. The only way into a coordinated proceeding is to have your own lawsuit on file. Any site suggesting you can register for a JCCP the way you would file a settlement claim has the mechanics wrong. For what an actual claimable settlement looks like, see our guide to the class action claim form, or browse the settlements with claim windows open right now.

Coordination also does not put a clock on anything for you. Filing deadlines run from your own circumstances under the law that applies to your claim, not from a coordination order, so an attorney is the right person to ask about timing.

Frequently asked questions

Is a JCCP a class action?

No. Coordination groups separate lawsuits in front of one judge for efficiency; it does not merge them into a single case with one class representative. Each plaintiff keeps their own lawsuit, their own facts, and their own damages, and there is no class-wide settlement fund or claim form created by coordination itself.

What does the number in JCCP 5255 mean?

It is just a sequential docket number assigned when the coordination petition is granted, the way MDL proceedings get numbers like MDL 3047. It identifies the proceeding and says nothing about its size, its strength, or how close it is to resolving.

What is the difference between a JCCP and an MDL?

A JCCP coordinates lawsuits filed in California state courts; an MDL coordinates lawsuits filed in federal courts nationwide. The bigger practical difference is trial. A federal MDL judge handles pretrial matters and then sends cases back to the courts where they were filed to be tried. California's coordination statute puts the actions before one judge for all purposes, so the coordination trial judge can try them. The same mass injury can produce both proceedings at once.

Do I have to do anything if my case is in a JCCP?

If you already have a lawyer, they handle the coordination filings and will tell you what the assigned judge's orders require. There is nothing for the public to sign up for: coordination is not an open enrollment period, and no form on any website adds you to a JCCP. Only filing your own lawsuit does that.

Can a case be added to a JCCP after it is created?

Yes. A later-filed case raising the same questions can be flagged as a potential add-on case, with notice going to the assigned judge and the Chair of the Judicial Council, and then folded into the coordinated proceeding. Cases can also move the other way: the coordination trial judge may send an action back to its original court, though not over a party's objection unless the circumstances that justified coordination have materially changed.