At no time after the filing of a petition and before the conclusion of a proceeding shall any party, interested participant or their representatives discuss the issues involved in the proceeding with any Commissioner when all other parties to the proceeding are not present. This prohibition does not preclude any constituent agency Commissioner from conferring with agency employees who are not, and have not been, involved in the matter before the Commission.
N.M. Admin. Code § 19.10.14.1411