{"data":{"id":"us/29-cfr-18.703","jurisdiction":"us","citation":"29 CFR 18.703","heading":"Bases of opinion testimony by experts.","body":"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.","path":["Title 29—Labor","Subtitle A—Office of the Secretary of Labor","PART 18—RULES OF PRACTICE AND PROCEDURE FOR ADMINISTRATIVE HEARINGS BEFORE THE OFFICE OF ADMINISTRATIVE LAW JUDGES","Subpart B—Rules of Evidence"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-29.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:20Z","sha256":"3fd8fe3a0f7a56a73417f7e91e4a49535f382dc7408f9083a0c9bf8a5b432391","source_id":"us-cfr","stale":true,"prev":"us/29-cfr-18.702","next":"us/29-cfr-18.704"},"notice":"GroundRules: Original legal text. Not legal advice."}