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Rule 1042.30.Defendant’s or Additional Defendant’s Request to Another Defendant or Additional Defendant for Production of Expert Reports. Response.

Adopted March 29, 2004 · Not amended since adoption · Last verified June 30, 2026

In one sentenceRule 1042.30 allows a defendant or additional defendant who has produced expert reports against other parties to demand those parties' expert reports in return, on the form in Rule 1042.38, with a duty to respond.

Full Text of Rule 1042.30

Text sizeJump to: (a) (b)

(1) A defendant or additional defendant who has furnished expert reports summarizing the expert testimony offered by that party in support of claims against other parties pursuant to Rule 1042.29(b) may serve a Defendant’s or Additional Defendant’s Request to Another Defendant or Additional Defendant for Production of Expert Reports. The request shall be substantially in the form prescribed by Rule 1042.38.
(2) The request may not be made earlier than ninety days after a certificate of merit was served on the party to whom the request is directed.
(b) A party to whom a request for production of expert reports has been directed pursuant to subdivision (a) shall within sixty days after service of the request furnish to the requesting party expert reports summarizing the expert testimony that will be offered by that party supporting the defenses to the claims by the requesting party and any claims raised against the requesting party and any other parties joined pursuant to Rule 2251 et seq.
End

Plain-English Summary

Lawsuits among several defendants need the same expert exchange that runs between plaintiff and defendant. Once a defendant or additional defendant has produced reports supporting claims against another party under Rule 1042.29(b), that party may serve a request for the other side's reports.

The rule extends the level field to cross-claims, so co-defendants who point at each other trade their expert support on equal terms.

Frequently Asked Questions

Who uses this request?

A defendant or additional defendant who has furnished expert reports against another defendant or additional defendant under Rule 1042.29(b).

What form applies?

The form set by Rule 1042.38.

Official Note

Official Note: Rule 2251 et seq. governs the joinder of additional defendants.

Amendment History

The provisions of this Rule 1042.30 adopted March 29, 2004, effective immediately, 34 Pa.B. 1926.

Source & verification. Rule text, the Official Note, and the amendment history are reproduced verbatim from the Pennsylvania Code, Title 231, the official compilation of rules adopted by the Supreme Court of Pennsylvania. This rule has not been amended since its adoption. Last verified June 30, 2026. · Official text
Also known as: co-defendant expert reportsadditional defendant discoverycross-claim expert reports