Pennsylvania
No registration; county-level risk — use self-uniting license
What a Lumen minister should do
No registration, but a 2007 York County ruling questioned online ordination and several Registers of Wills post disclaimers. Safe alternative: the couple obtains a self-uniting license (23 Pa.C.S. § 1502) and you lead the ceremony.
Register with
None — but some counties warn that online-ordained officiants may not qualify
Authority
23 Pa.C.S. § 1503