Pennsylvania Plumbing License Exam: Dates, Locations, and What to Expect

Pennsylvania has no single state plumbing exam. Municipalities that license plumbers may run their own testing programs, with different formats, passing scores, code references, and schedules; others accept proof of licensure or exams from elsewhere. If you assume Philadelphia's process applies in Pittsburgh or Allentown, you'll prepare for the wrong test.

Here's how the exam works in Pennsylvania's three largest licensing jurisdictions — and what to watch for everywhere else.

Philadelphia: Year-Round ICC Computer-Based Testing

Philadelphia's Department of Licenses and Inspections (L&I) delegates exam administration to the International Code Council (ICC). Tests are delivered as closed-book, computer-based exams at Pearson VUE testing centers, available year-round by appointment.

Journeyman exam: 75 multiple-choice questions, 3-hour time limit, 75% passing score. Covers fixtures, traps, interceptors, cleanouts, drainage, venting, and water distribution.

Master exam: 100 multiple-choice questions, 4-hour time limit, 75% passing score. Adds advanced system design, administrative procedures, plan reading, and code calculations.

The reference code is the Philadelphia Plumbing Code, which transitioned to the 2021 International Plumbing Code (IPC) with local amendments effective July 1, 2026. If you're sitting for the exam, confirm which code version applies — studying the wrong edition is the most common preventable mistake.

One deadline that catches people: Philadelphia requires the license application to be submitted within 12 months of successful exam completion. Use the current L&I checklist if your timing is close.

Allegheny County: Biannual In-Person Exams

The Allegheny County Health Department (ACHD) takes a completely different approach. Instead of on-demand computer testing, ACHD offers exams twice a year — spring and fall — over a two-day testing period at the Cherry City Volunteer Fire Company, 309 Davis Avenue, Pittsburgh, PA 15209.

ACHD's published 2026 spring exam dates were April 13–14, 2026, with an application deadline of March 16, 2026. Check ACHD for the current exam schedule before applying. Registration is online-only through the Accela Citizen Access Portal — no paper applications accepted.

Journeyman exam fee: $133. Requires four years as a registered apprentice under a master plumber plus 576 classroom hours.

Master exam fee: $265. Requires two additional years of journeyman field experience.

The ACHD exam tests knowledge based on the 2022 version of Allegheny County Article XV, not the IPC. This is a county-specific plumbing code, so Philadelphia study materials won't help here.

Allentown: Written and Design Two-Part Exam

The Allentown Plumbers' Licensing Board administers its own exam twice annually, typically in May and November. For 2026, the scheduled dates are May 14 (application deadline March 27) and November 5 (application deadline September 18).

The exam fee is $85 and consists of two parts: a written section and a design/drawing section. You need at least 70% on both parts to pass; confirm retesting procedures with the board if needed.

Allentown's exam is notable because the board explicitly accepts W-2 forms as proof of qualifying experience when a former employer refuses to sign a notarized work statement. That fallback doesn't exist everywhere.

Smaller Municipalities and Reciprocity

Some smaller jurisdictions — including townships and boroughs — may not administer their own exams. Instead, they may accept proof of licensure from a municipality that does. Lower Macungie Township, for example, recognizes any active Pennsylvania municipal plumbing license obtained through an approved exam.

This creates a practical strategy: get licensed in a municipality with a recognized exam (Philadelphia, Allegheny County, Allentown, Erie, Lancaster), then use that credential to work in surrounding jurisdictions that accept it. But verify first — acceptance is at each local board's discretion, and nothing is automatic.

Preparing for Any Municipal Exam

Regardless of which municipality you're testing in, three things consistently trip up candidates:

Wrong code edition. Philadelphia uses the 2021 IPC with local amendments, Allegheny County uses Article XV, and Allentown has its own local code basis. Know which code your exam covers before buying any study materials.

Missing documentation at registration. Most boards require notarized work statements from your supervising master plumber, proof of classroom hours, and specific identification. Allegheny County requires online-only submission through Accela. Philadelphia uses the eCLIPSE portal. Check the exact submission requirements — not just the exam content.

Fees. The example exam fees in these jurisdictions range from $85 to $265. Confirm the current fee and refund rules with the administering board before paying.

The Pennsylvania Plumber License Guide maps out the exam requirements, application steps, and deadlines for every major municipal testing program in the state — so you're studying the right material for the right board.

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