WI-JP Pass Rate 2026: What the Data Shows

What DSPS Actually Publishes About Pass Rates

If you're searching for a hard pass-rate percentage for the Wisconsin Journeyman Plumber License Exam (class code 7630), you'll find that the Wisconsin Department of Safety and Professional Services (DSPS) does not release a public statistic on how many candidates pass on their first try. What DSPS does publish, in detail, is the structure that determines whether a candidate passes: the credential checklist, the reference-material rules, and the scoring standard. That's actually more useful than a headline number, because it tells you exactly what you're being measured against. Instead of chasing an unverified percentage, the smarter approach is to reverse-engineer risk from the documented mechanics: question counts, time limits, open-book access, and the 70% cutoff. Every one of those is a controllable variable. This article walks through what the official documentation reveals about where candidates are likely to lose points, and how the exam's two-part design changes your preparation math compared to a single-sitting test.

Why the Two-Part Structure Changes the Pass Rate Conversation

Most licensing exams are discussed as a single pass/fail event. The Wisconsin Journeyman Plumber exam isn't structured that way. According to the DSPS credential checklist, candidates sit for two distinct parts:

• Part 1: 87 questions, three hours
• Part 2: 120 questions, three hours

That's 207 questions and six hours combined - but critically, these are not one continuous exam. Each part is its own session with its own timer and, functionally, its own pass/fail outcome against the 70% standard. This matters for how you think about "pass rate," because a candidate can be strong on one part and weak on the other. A generic pass-rate percentage would blur that distinction. Your real question isn't "what's the average pass rate" - it's "which of the two parts am I more likely to underperform on, and why."

For a full breakdown of what's tested inside each part, see the WI-JP Exam Domains 2026: Complete Guide to All Content Areas, which maps the checklist structure to the reference materials you're allowed to bring.

The 70% Standard and What It Means for Your Score

Both Part 1 and Part 2 require a 70% passing standard. Because the exam is open book, the 70% threshold isn't testing raw memorization - it's testing whether you can locate, interpret, and apply the correct code section or manual reference inside a fixed time window. That distinction changes how "failing" typically happens on this exam. Candidates who fail open-book trade exams rarely fail because they didn't know plumbing; they fail because they couldn't find the right passage in Wisconsin Statutes chapters 145 and 106, SPS 305, SPS 381-387, SPS 302, or SPS 325 fast enough across 87 or 120 questions. If you want the exact scoring mechanics broken down further, including how the two parts are scored independently, read WI-JP Passing Score 2026: Exactly What You Need to Pass.

Reference Materials and Content Areas That Drive Outcomes

DSPS permits exactly nine reference items, and how well you know their internal organization - not just their content - is a major factor in whether you clear 70% on either part. The permitted references are:

Notice what's missing: there is no mention of topical percentage weighting by domain in the DSPS materials. Exam parts and reference titles describe structure and permitted materials - they are not a percentage breakdown of how many questions come from each topic. That means your prep should be organized around the state code and POWTS (Private Onsite Wastewater Treatment System) references themselves - At-Grade, Mound, In-Ground Soil Absorption, Holding Tank, and Pressure Distribution - rather than around an assumed scoring weight that DSPS doesn't publish. Practice exams, loose papers, removable tabs, sticky notes, and paperclips are prohibited. Only tabs that come pre-attached to bound code books, and three-ring paper dividers with tabs, are allowed, along with architect and engineer scale rulers. Building your binder correctly - three-hole-punched notes, proper dividers, no loose sheets - is a pass-rate factor most candidates underestimate until they're denied entry to the exam room over an infraction.

For a topic-by-topic walkthrough of what to master inside each reference, see the WI-JP Study Guide 2026: How to Pass on Your First Attempt.

Fee and Registration Mechanics That Affect Retake Odds

Pass-rate outcomes aren't only about content knowledge - they're shaped by the registration decisions candidates make before they ever sit down. A few mechanics from the DSPS and Pearson VUE documentation matter more than most candidates realize:

• Pearson VUE charges $90 per part, for $180 total in examination fees (application and credential fees through LicensE are separate).
• Passing results are valid for only one year, so a pass on Part 1 that sits unused while you delay Part 2 can expire.
• A Pearson VUE retake requires obtaining new DSPS exam eligibility - it isn't an automatic rebooking.
• Once you select the Pearson VUE route, you cannot revert that application back to a DSPS-administered examination location.

Every one of these mechanics has a real cost implication if you fail and need to retake. Understanding the full fee structure - not just the exam fee, but application, credential, and renewal costs - helps you budget for the possibility of a retake instead of being surprised by it. See WI-JP Certification Cost 2026: Complete Pricing Breakdown for the full picture.

Comity and Out-of-State Pathways Have Different Risk Profiles

Not every candidate arrives at the WI-JP exam through the same route, and that affects how prepared they typically are. The standard eligibility path requires completion of a recognized plumbing apprenticeship, which builds familiarity with Wisconsin-specific code over years. The out-of-state apprenticeship route requires a five-year program with at least 576 hours of related instruction - but that instruction was likely built around a different state's code, meaning candidates from this route often need extra time specifically inside SPS 305, SPS 381-387, and the POWTS component manuals rather than general plumbing theory. There's also a comity route described in the DSPS application for qualifying experienced out-of-state journeyman licensees, which shifts the emphasis further toward Wisconsin-specific statutory and administrative code familiarity rather than hands-on trade skill, since that skill is presumed already demonstrated. If you're unsure which eligibility path applies to you, review WI-JP Requirements 2026: Eligibility, Prerequisites & How to Qualify before you build a study plan, since your pathway changes which reference materials deserve the most attention.

A Study Timeline Built Around Two Distinct Exams

Because Part 1 and Part 2 are separately timed and separately scored, a single generic study calendar doesn't fit well. Instead, treat your prep like two connected but distinct projects, each ending with its own binder-organization dry run under a three-hour clock.

Spacing your review this way - rather than cramming both parts together the week before - mirrors how the exam is actually administered as two separate sittings. If you want a condensed, printable version of the must-know facts to review the night before either session, the WI-JP Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for exactly that.

Part 1 vs. Part 2 at a Glance

Combined, the two parts total 207 questions across six hours and $180 in Pearson VUE examination fees. Because each part is scored on its own against the same 70% line, a candidate's overall outcome really comes down to two independent pass/fail events rather than one blended score. If you're still deciding whether the format itself is difficult relative to your background, How Hard Is the WI-JP Exam? Complete Difficulty Guide 2026 goes deeper into what makes the open-book, two-part design feel harder or easier depending on your apprenticeship experience.

Once you're licensed, remember that journeyman work in Wisconsin remains subject to applicable master-plumber or other authorized supervision requirements, and renewal comes every four years on March 31 with a $180 fee and 24 hours of approved continuing education. Passing the exam is the milestone most candidates focus on, but it's one step inside a longer credentialing cycle - something worth weighing if you're evaluating whether the WI-JP certification is worth it for your career plans, or researching what journeyman plumbers in Wisconsin typically earn after licensure.

If you want to build lookup speed and timing discipline before test day, working through structured practice questions on our WI-JP practice test platform is one of the most direct ways to simulate the real 87-question and 120-question sessions. You can also browse additional WI-JP prep resources covering each reference manual in more depth.

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