29 C.F.R. § 18.703 Bases of opinion testimony by experts.
Title 29 - Labor
The facts or data in the particular case upon which an expert bases an opinion or inference may be those perceived by or made known to the expert at or before the hearing. If of a type reasonably relied upon by experts in the particular field in forming opinions or inferences upon the subject, the facts or data need not be admissible in evidence.
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
§ 18.703 Bases of opinion testimony by experts.
