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Rule 3.506.Liaison counsel

Division 4. Parties and Actions · Chapter 7. Coordination of Complex Actions · Article 1. General Provisions · Last amended 2007 · Last verified July 29, 2026

In one sentenceRule 3.506 authorizes the assigned judge to have each side in a coordination proceeding select liaison counsel, to appoint liaison counsel when the parties cannot agree, to remove liaison counsel for good cause, and to require that any party who has requested special notice still be served directly with documents otherwise served only on that party's liaison counsel.

Full Text of Rule 3.506

Text sizeJump to: (a) (b) (c)

(a) Selection and appointment An assigned judge may at any time request that the parties on each side of the included or coordinated actions select one or more of the attorneys of record on that side for appointment as liaison counsel, and may appoint liaison counsel if the parties are unable to agree. (Subd (a) amended effective January 1, 2005.)
(b) Duration of appointment by coordination motion judge Unless otherwise stipulated to or directed by an assigned judge, the appointment of a liaison counsel by a coordination motion judge terminates on the final determination of the issue whether coordination is appropriate. For good cause shown, the coordination motion judge, on the court’s own motion or on the motion of any party, may remove previously appointed counsel as liaison counsel. (Subd (b) amended and lettered effective January 1, 2005; adopted as part of subd (a) effective January 1, 1974.)
(c) Service on party that has requested special notice Except as otherwise directed by the assigned judge, any party that has made a written request for special notice must be served with a copy of any document thereafter served on the party’s liaison counsel. (Subd (c) amended effective January 1, 2007; adopted as subd (b); previously amended and relettered effective January 1, 2005.)

Plain-English Summary

A coordination proceeding can pull together dozens of parties from separate original actions, and serving every one of them individually on every document quickly becomes unworkable. Subdivision (a) gives the assigned judge a tool for that problem: at any time, the judge may ask the parties on each side of the included or coordinated actions to select one or more of their own attorneys of record to serve as liaison counsel, and if the parties cannot agree, the judge may appoint liaison counsel directly.

Subdivision (b) addresses how long an appointment lasts and how it can end. Unless the parties stipulate otherwise or an assigned judge directs otherwise, an appointment made by the coordination motion judge, the judge deciding whether coordination is appropriate in the first place, terminates once that determination is finally made. That same coordination motion judge may, for good cause and on the court's own motion or a party's motion, remove previously appointed liaison counsel.

Subdivision (c) limits how far liaison counsel can substitute for direct notice. A party that has filed a written request for special notice must still be served with a copy of anything later served on that party's liaison counsel, unless the assigned judge directs otherwise, preserving that party's right to see documents firsthand rather than relying entirely on its liaison counsel to pass them along.

Frequently Asked Questions

What is liaison counsel in a California coordination proceeding?

One or more attorneys of record selected, or appointed by the assigned judge, to act on behalf of the parties on one side of the included or coordinated actions.

Who selects liaison counsel?

The parties on each side, if the assigned judge asks them to; if they cannot agree, the assigned judge appoints liaison counsel directly.

How long does an appointment made by the coordination motion judge last?

By default, it terminates once the coordination motion judge makes a final determination on whether coordination is appropriate, unless the parties stipulate otherwise or an assigned judge directs otherwise.

Can a party still receive documents directly once liaison counsel is appointed for its side?

Yes, if that party has filed a written request for special notice; it must still be served with a copy of documents served on its liaison counsel.

Amendment History

Rule 3.506 amended and renumbered effective January 1, 2007; adopted as rule 1506 effective January 1, 1974; previously amended effective January 1, 2005.)

Source & verification. Rule text is reproduced verbatim from the Judicial Council of California. Adopted by the Judicial Council of California. Last verified July 29, 2026. · Official source
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