If a demand for an exchange of information concerning expert trial witnesses includes a demand for production of reports and writings as described in subdivision (c) of Section 2034.210, all parties shall produce and exchange, at the place and on the date specified in the demand, all discoverable reports and writings, if any, made by any designated expert described in subdivision (b) of Section 2034.210.
§ 2034.270.Production of reports and writings; time and place to exchange
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 2034.270 requires all parties to produce and exchange, at the place and on the date the demand specifies, every discoverable report and writing made by a designated retained, employed, or party expert, whenever the original demand included a request for that production under Section 2034.210.
Full Text of § 2034.270
Plain-English Summary
Section 2034.210 lets a demanding party add a request for production of experts' reports and writings on top of the basic list exchange, and this section is what makes that added request enforceable. If the demand included that production request, every party has to produce and exchange the discoverable reports and writings on the same schedule as everything else, at the place and on the date the demand specified.
The obligation reaches only the writings of experts falling within subdivision (b) of Section 2034.210, the ones who are a party, a party's employee, or retained for the litigation, and only to the extent the reports and writings are discoverable in the first place. A retained expert who has not produced any reports or writings yet has nothing to turn over under this section, but any that do exist have to move on the same exchange date as the witness lists and declarations, keeping the entire package of expert disclosures on one unified timeline.
Frequently Asked Questions
When does this section require production of an expert's reports and writings?
When the original demand for exchange included a demand for that production under subdivision (c) of Section 2034.210.
Whose reports and writings does this section reach?
Those made by a designated expert described in subdivision (b) of Section 2034.210, meaning a party, employee, or retained expert.
Where and when must the production occur?
At the place and on the date specified in the demand.
Does this section require producing writings that are not discoverable?
No. It reaches only discoverable reports and writings the expert made in preparing the opinion.
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
Also known as: ccp 2034.270 production of expert reports californiaexchange of expert writings and reportsdiscoverable expert reports demand exchange