N.M. Code R. § 17.11.2.8
PROCEDURAL RULES
B. The provisions of Rule 27 of the Commission's Rules of Procedure concerning intervention shall apply to proceedings to impose an administrative fine except that the Commission may grant the intervention only if it appears that the movant would be directly affected by the Commission's decision in the proceeding and that the movant possesses a substantial interest in the subject matter of the proceeding, or that participation of the movant may be in the public interest, or that the movant is a proper party under the law.
[5-15-96; Recompiled 12/31/01]