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§ 2034.240.Service of demand

Title 4. Civil Discovery Act · Chapter 18. Simultaneous Exchange of Expert Witness Information · Article 2. Demand for Exchange of Expert Witness Information · Enacted 2004 · no amendments on record · Last verified July 29, 2026

In one sentenceSection 2034.240 requires the party demanding an exchange of expert trial witness information to serve that demand on every party who has already appeared in the action.

Full Text of § 2034.240

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The party demanding an exchange of information concerning expert trial witnesses shall serve the demand on all parties who have appeared in the action.

Plain-English Summary

This section is short because its job is narrow: it fixes who has to receive a copy of a demand for exchange of expert witness information once one has been served. The party making the demand has to serve it on every party who has appeared in the action, not only on whichever opposing party the demanding party is most concerned with.

That broad service requirement matters because the exchange this chapter sets up is mutual and simultaneous among everyone involved. If the demand only reached some of the appeared parties, the exchange itself could not function as designed, since every appeared party is expected to produce its own expert list, and any required declarations, on the same exchange date. Serving the demand on all appeared parties is what makes that reciprocal timing possible in a case with more than two sides.

Frequently Asked Questions

Who must be served with a demand for exchange of expert witness information?

All parties who have appeared in the action.

Why does the demand have to reach every appeared party rather than just the opposing side?

Because the exchange the demand triggers is mutual and simultaneous among all parties, so everyone who has appeared needs notice to take part on the same exchange date.

Does this section apply to parties who have not yet appeared in the case?

No. The service requirement in this section reaches only those parties who have already appeared in the action.

Amendment History

(Added by Stats.2004, c. 182 (A.B.3081), § 23, operative July 1, 2005.)

Source & verification. Section text is reproduced verbatim from the West's Annotated California Codes / Thomson Reuters. Enacted by the California Legislature. Last verified July 29, 2026. · Official source
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