29 CFR 102.129 : Labor (§ 0.735-1 To Parts 4908-4999) — (§ 100.101 To Parts 472-499) — Regulations Relating To Labor (§ 100.101 To Parts 472-499) — National Labor Relations Board (§ 100.101 To Parts 105-199) — Rules And Regulations, Series 8 (§ 102.1 To Appendix A To Part 102) — Ex Parte Communications (§ 102.126 To § 102.133) — Communications prohibited.

Except as provided in § 102.130, ex parte communications prohibited by § 102.126 shall include:

(a) Such communications, when written, if copies thereof are not contemporaneously served by the communicator on all parties to the proceeding in accordance with the provisions of § 102.114(a).

(b) Such communications, when oral, unless advance notice thereof is given by the communicator to all parties in the proceeding and adequate opportunity afforded to them to be present.