A party or his representative shall not communicate, directly or indirectly with any member of the Commission in connection with any issue in a pending case except as provided in this Part and upon notice and opportunity for all parties to participate.
Ill. Admin. Code tit. 56, § 5300.970
Section 5300.970 renumbered from Section 5300.870 at 9 Ill. Reg. 6207, effective April 24, 1985