Pennsylvania — plumbing code & licensing

The pa.gov UCC Review and Advisory Council page (read firsthand) confirms the UCC triennial update was approved by the Independent Regulatory Review Commission on October 16, 2025, published in the Pennsylvania Bulletin on November 8, 2025, effective January 1, 2026; that update adopts the 2021 ICC series including the 2021 IPC (the IPC line item was confirmed on the City of York's official UCC update page citing PA Bulletin Doc. No. 25-1602, not on pa.gov itself). SCOPE SPLITS: Philadelphia maintains its own plumbing code (Philadelphia Plumbing Code, Subcode P, built on the IPC with city amendments) and Allegheny County (second-class county) retains its own plumbing code authority under 35 P.S. 7210.501(a.1) if it meets UCC minimums; municipalities administer and enforce the UCC locally. LICENSING: Pennsylvania has no statewide individual plumber license; licensing is municipal/local. OPEN GATE: no official state source stating that negative was opened firsthand, so licensing fields are blank and the row is partial. PA does certify UCC code officials (including Plumbing Inspector / Plumbing Plans Examiner categories); that is inspector certification, not plumber licensure. UPGRADE PASS 1 (2026-10-31): gate closed - a Commonwealth of Pennsylvania (PennDOT) specifications document hosted on the official PA eMarketplace procurement portal (https://www.emarketplace.state.pa.us/FileDownload.aspx?file=6100042774/Solicitation_0.pdf&OriginalFileName=Electricial%20specs%2011-1_5-9-17.pdf), opened firsthand, states in its Contractor Licensing section: 'The Commonwealth of Pennsylvania has no requirements related to the registration, certification or licensure of contractors (or their employees) that are engaged in the construction industry,' and that some of Pennsylvania's 2,565 municipalities have local licensure requirements that typically pertain to home improvement contractors, electrical contractors (or electricians), and plumbing contractors (or plumbers). licensing_authority and licensing_source_url filled from that official statement; license_classes_url left blank because no state license classes exist. Status flipped to verified.