29 C.F.R. § 18.701 Opinion testimony by lay witnesses.
Title 29 - Labor
If the witness is not testifying as an expert, the witness' testimony in the form of opinions or inferences is limited to those opinions or inferences which are rationally based on the perception of the witness and helpful to a clear understanding of the witness' testimony or the determination of a fact in issue.
Title 29: Labor
PART 18—RULES OF PRACTICE AND PROCEDURE FOR ADMINISTRATIVE HEARINGS BEFORE THE OFFICE OF ADMINISTRATIVE LAW JUDGES
Subpart B—Rules of Evidence
Opinions and Expert Testimony
§ 18.701 Opinion testimony by lay witnesses.
