The Truth About PE Licenses in Forensic Engineering

All of Veritech's testifying experts hold professional engineering licenses as well as accreditation, certification, endorsements, and memberships with many other technical societies. In the field of forensic engineering, many experts aspire to obtain a PE, or Professional Engineer, license as a part of their career path. But, what does a PE even mean? The short answer is: credibility, and it shows that an engineer has successfully shown that they know their stuff, at least to the state or jurisdiction in which they practice. However, a PE is not required for an expert to be admitted into court. What's more, once an engineer becomes a PE, that engineer holds that license for a specific state within the entire United States of America, with licensure that can be transferred to any other state in the union very easily (sometimes with, or without, a simple jurisprudence or ethics questionnaire. More on this in a future blog post). This blog post will describe some of these details in the hopes to clear the air around this less-than-straightforward concept.

A Professional Engineer (PE) license has value, but in forensic engineering its importance is often overstated. The PE is fundamentally a regulatory credential—it is required when an engineer is performing work that must be sealed, such as design documents or plans submitted for permitting. Forensic engineering, however, is typically focused on analysis, investigation, and expert opinion, not producing stamped designs. In most cases, the engineer is evaluating evidence, reconstructing events, or assessing failure modes, none of which inherently require a PE stamp. Courts qualify experts based on knowledge, experience, and methodology, not simply licensure status. As a result, while having a PE can add a layer of credibility, it is not what determines the quality or admissibility of a forensic opinion—the engineer’s actual expertise and ability to defend their conclusions under scrutiny matter far more.

In the legal system, an “expert opinion” is not about holding a particular license—it’s about whether a witness has specialized knowledge that will help the judge or jury understand technical issues beyond ordinary experience. Under the Federal Rule of Evidence 702, an expert is defined as someone qualified by knowledge, skill, experience, training, or education. That definition is intentionally broad. A licensed PE may qualify, but so can a non-PE with deep, relevant experience in accident reconstruction, product design, human factors, or failure analysis.

Courts act as “gatekeepers” to determine whether an expert’s opinion is admissible. This framework comes largely from the Daubert v. Merrell Dow Pharmaceuticals decision, which requires that expert testimony be reliable and relevant. Judges will often evaluate whether the expert’s methods are testable, have been peer-reviewed, have known error rates, and are generally accepted in the field. In some jurisdictions, courts may also reference the older Frye Standard, which focuses on whether the methodology is widely accepted.

What matters most is fit and foundation:

• Does the expert have direct experience with the type of failure or incident at issue?

• Are their methods grounded in established engineering or scientific principles?

• Can they clearly explain and defend their conclusions under cross-examination?

In this context, an “expert opinion” is essentially a defensible, methodologically sound interpretation of facts, offered by someone whose background gives them authority to speak on that specific issue. A PE license can support credibility, however the court is focused on whether the opinion will genuinely assist in resolving the case.

Contact Veritech Consulting Engineering today to see how our experts can help with your case. Our credentials, along with real courtroom experience, will help you resolve your case, matter, or dispute effectively and efficiently.