29 CFR § 1979.107 - Hearings.
(a) Except as provided in this part, proceedings will be conducted in accordance with the rules of practice and procedure for administrative hearings before the Office of Administrative Law Judges, codified at subpart A, of 29 CFR part 18.
(b) Upon receipt of an objection and request for hearing, the Chief Administrative Law Judge will promptly assign the case to a judge who will notify the parties, by certified mail, of the day, time, and place of hearing. The hearing is to commence expeditiously, except upon a showing of good cause or unless otherwise agreed to by the parties. Hearings will be conducted as hearings de novo, on the record. Administrative law judges shall have broad discretion to limit discovery in order to expedite the hearing.
(d) Formal rules of evidence shall not apply, but rules or principles designed to assure production of the most probative evidence shall be applied. The administrative law judge may exclude evidence which is immaterial, irrelevant, or unduly repetitious.