29 C.F.R. § 18.405 Methods of proving character.
Title 29 - Labor
(a) Reputation of opinion. In all cases in which evidence of character or a trait of character of a person is admissible, proof may be made by testimony as to reputation or by testimony in the form of an opinion. On cross-examination, inquiry is allowable into relevant specific instances of conduct. (b) Specific instances of conduct. In cases in which character or a trait of character of a person is an essential element of a claim or defense, proof may also be made of specific instances of that person's conduct.
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
Relevancy and Its Limits
§ 18.405 Methods of proving character.