(a) Except as specifically provided in this part, the Rules of Practice and Procedure for Administrative Hearings before the Office of Administrative Law Judges established by the Secretary at 29 CFR part 18 shall apply to administrative proceedings described in this part.

(b) As provided in the Administrative Procedure Act, 5 U.S.C. 556,any. The Federal Rules of Evidence and 29 CFR part 18, subpart B, will not apply, but principles designed to ensure production of relevant and probative evidence shall guide the admission of evidence. The ALJ may exclude evidence that is immaterial, irrelevant, or unduly repetitive.