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§ 8.01-20.1.Certification of expert witness opinion at time of service of process.

Chapter 2. Parties · Article 3. Death or Change of Parties · Last amended 2025 · Last verified July 16, 2026

In one sentenceSection 8.01-20.1 deems a medical malpractice complaint, once the plaintiff requests service of process, a certification of a signed expert opinion on standard of care and causation, excuses that certification when expert testimony is unnecessary, limits discovery about the certifying expert, and requires the plaintiff to certify compliance within twenty-one days of the answer.

Full Text of § 8.01-20.1

Text sizeJump to: (A) (B) (C) (D)

A. Every complaint, counter claim, or third party claim in a medical malpractice action, at the time the plaintiff first requests service of process upon a defendant, or requests a defendant to accept service of process, shall be deemed a certification that the plaintiff has obtained from an expert witness whom the plaintiff reasonably believes would qualify as an expert witness pursuant to subsection A of § 8.01-581.20 a written opinion signed by the expert witness that states:
BASED UPON A REASONABLE UNDERSTANDING OF THE FACTS, THE DEFENDANT FOR WHOM SERVICE OF PROCESS HAS BEEN REQUESTED DEVIATED FROM THE APPLICABLE STANDARD OF CARE AND THE DEVIATION WAS A PROXIMATE CAUSE OF THE INJURIES CLAIMED.
No further statement or opinion from the expert witness shall be required for the purposes of this section. The plaintiff may have separate certifications for standard of care and causation. Each defendant who is the subject of an expert witness's certification shall be identified in the certification.
B. This certification is not necessary if the plaintiff, in good faith, alleges a medical malpractice action that asserts a theory of liability where expert testimony is unnecessary because the alleged act of negligence clearly lies within the range of the jury's common knowledge and experience.
C. The certifying expert shall not be required to be an expert witness expected to testify at trial nor shall any defendant be entitled to discover the identity or qualifications of the certifying expert or the nature of the certifying expert's opinions. Should the certifying expert be identified as an expert expected to testify at trial, the opinions and bases therefor shall be discoverable pursuant to Rule 4:1 of the Rules of Supreme Court of Virginia with the exception of the expert's status as a certifying expert.
D. Within 21 days of an answer being filed by a defendant upon whom service of process has been requested, the plaintiff shall certify to such defendant that the plaintiff had obtained the necessary certifying expert opinion at the time service was requested or affirms that the plaintiff did not need to obtain a certifying expert witness opinion by including a statement that reads: THIS IS TO CERTIFY THAT THE PLAINTIFF HAS COMPLIED WITH § 8.01- 20.1 OF THE CODE OF VIRGINIA. The court, upon good cause shown, may conduct an in camera review of the certifying expert opinion obtained by the plaintiff as the court may deem appropriate. If the plaintiff did not obtain a necessary certifying expert opinion at the time the plaintiff requested service of process on a defendant as required under this section, the court shall impose sanctions according to the provisions of § 8.01-271.1 and may dismiss the case with prejudice.

Plain-English Summary

Subsection A ties a certification requirement to the moment a medical malpractice case reaches a defendant. When the plaintiff first requests service of process on a defendant, or asks a defendant to accept service, the complaint, counterclaim, or third-party claim is deemed a certification that the plaintiff has obtained, from an expert witness reasonably believed to qualify under § 8.01-581.20(A), a written opinion, signed by that expert, stating that the defendant deviated from the applicable standard of care and that the deviation proximately caused the claimed injuries. No further statement from the expert is required for this purpose, a plaintiff may obtain separate certifications for standard of care and for causation, and every defendant covered by a given certification must be identified in it.

Subsection B excuses the certification in a narrow situation: when the plaintiff, in good faith, alleges a theory of liability where expert testimony is unnecessary because the claimed negligence clearly falls within the range of a jury’s common knowledge and experience. Subsection C then shields the certifying expert from most discovery — that expert need not be the one expected to testify at trial, and a defendant is not entitled to learn the certifying expert’s identity, qualifications, or the substance of the opinion, unless the certifying expert is later identified as a trial witness, at which point the opinions and their bases become discoverable under Rule 4:1, except for the fact that the expert also served as the certifying expert.

Subsection D adds a follow-up deadline: within twenty-one days after a defendant on whom service was requested files an answer, the plaintiff must certify to that defendant either that the necessary certifying opinion was obtained at the time service was requested, or that no such opinion was needed. The court, for good cause, may review the certifying opinion in camera. If the plaintiff did not obtain a required certifying opinion when service of process was requested, the court must impose sanctions under § 8.01-271.1 and may dismiss the case with prejudice.

Frequently Asked Questions

What must a plaintiff have before serving a medical malpractice complaint in Virginia?

Section 8.01-20.1(A) deems the act of requesting service a certification that the plaintiff already obtained a signed written opinion from a qualifying expert stating that the defendant deviated from the standard of care and that the deviation proximately caused the claimed injuries.

Is the expert certification requirement ever excused?

Yes. Section 8.01-20.1(B) excuses it when the plaintiff, in good faith, alleges a theory of liability where expert testimony is unnecessary because the alleged negligence clearly falls within a jury’s common knowledge and experience.

Can the defendant find out who the certifying expert is or what the expert said?

Generally no. Section 8.01-20.1(C) shields the certifying expert’s identity, qualifications, and opinions from discovery, unless that expert is later identified as a trial witness, at which point ordinary expert discovery under Rule 4:1 applies except as to the certifying-expert status itself.

What must happen within twenty-one days after the defendant files an answer?

Section 8.01-20.1(D) requires the plaintiff to certify to that defendant either that the necessary certifying opinion was obtained when service was requested, or that no certifying opinion was required.

What happens if the plaintiff never obtained a required certifying opinion at the time service was requested?

Section 8.01-20.1(D) requires the court to impose sanctions under § 8.01-271.1, and the court may also dismiss the case with prejudice.

Amendment History

2005, cc. 649, 692; 2007, c. 489; 2013, cc. 65, 610; 2025, c. 359.

Source & verification. Section text and amendment history are reproduced verbatim from the Code of Virginia, published by the Code of Virginia, Virginia Division of Legislative Automated Systems. Last verified July 16, 2026. · Official source
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