1 Pa. Code § 33.33
When a participant has appeared by attorney, service upon the attorney shall be deemed service upon the participant as provided in § 31.24(b) (relating to notice of appearance) and separate service on the party may be omitted as provided in § 31.26 (relating to service on attorneys).
1 Pa. Code § 33.33
This section cited in 7 Pa. Code §131.13 (relating to service); 16 Pa. Code §42.34 (relating to motions); 34 Pa. Code §111.12 (relating to filing, service and proof of service); 34 Pa. Code §111.14 (relating to motions to quash); 34 Pa. Code §131.5 (relating to definitions); 34 Pa. Code §131.13 (relating to continuances or postponements of hearings); 34 Pa. Code §131.50 (relating to return to work-modification or suspension); 34 Pa. Code §131.56a (relating to withdrawal of appearance); 34 Pa. Code §131.64 (relating to notice of oral deposition); 37 Pa. Code §171.25 (relating to service); 40 Pa. Code §15.44 (relating to service); 40 Pa. Code § 17.4 (relating to legal representation); 40 Pa. Code §17.13 (relating to protests/intervention procedure); 52 Pa. Code §1001.53 (relating to service on attorneys); 61 Pa. Code §703.5 (relating to other submissions); 61 Pa. Code §703.6 (relating to service); and 67 Pa. Code §491.8 (relating to service).