4 Pa. Code § 89.21
There is hereby constituted in the Department a procedure for Departmental hearing of appeals from decisions by the Bureau as to claims for death benefits made pursuant to the act, timely filed within 30 days of notice of the decision of the Bureau, as provided in § 89.9 (relating to appeals). Notices of decisions by the Bureau in cases involving claimants whose decedent was an employe of a subdivision will be sent to both the claimant and the subdivision. In cases where the decedent of the claimant was a subdivision employe, appeals shall be filed by each unless the subdivision has previously paid the claim, in which event only the subdivision shall appeal. Notices of decisions will be dispatched certified mail and will be deemed to have been served on the date received. If the appeal is filed on behalf of a claimant by a person other than the claimant, it shall be accompanied by a letter of attorney setting forth the appellant's power to act on the claimant's behalf.
4 Pa. Code § 89.21