Participation in a proceeding as a party intervener may be initiated as follows:
1 Pa. Code § 35.27
This section cited in 1 Pa. Code § 31.3 (relating to definitions); 7 Pa. Code §131.14 (relating to interveners); 7 Pa. Code §179.17 (relating to intervention); 25 Pa. Code §1021.81 (relating to intervention); 28 Pa. Code § 301.7 (relating to fair hearing); 34 Pa. Code §111.15 (relating to no other pleadings allowed); 34 Pa. Code §131.32 (relating to petitions except petitions for joinder and challenge proceedings); 40 Pa. Code §17.13 (relating to protests/intervention procedure); 49 Pa. Code §19.33 (relating to intervention); 52 Pa. Code §5.71 (relating to initiation of intervention); 52 Pa. Code §1005.31 (relating to initiation of intervention); 58 Pa. Code §493a.12 (relating to intervention); 61 Pa. Code §703.2 (relating to petition content); 67 Pa. Code §441.3 (relating to permit application procedure); and 67 Pa. Code §491.6 (relating to notice and conduct of hearings).