29 CFR 18.23 : Labor (§ 0.735-1 To Parts 4908-4999) — (§ 0.735-1 To § 99.530) — Office Of The Secretary Of Labor (§ 0.735-1 To § 99.530) — Rules Of Practice And Procedure For Administrative Hearings Before The Office Of Administrative Law Judges (§ 18.10 To Appendix To Subpart B Of Part 18) — General (§ 18.10 To § 18.95) — Parties And Representatives (§ 18.20 To § 18.24) — Disqualification of representatives.