29 CFR §18.702
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
If scientific, technical, or other specialized knowledge will assist the judge as trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education, may testify thereto in the form of an opinion or otherwise.