- What the 70% Passing Score Actually Means
- The Math Behind 75 Questions and 2.92 Hours
- Domain Weighting: Where the Questions Come From
- Why "Open Book" Doesn't Mean Easy
- Registration, Fees, and the 30-Day Eligibility Window
- Scheduling Your Prep Around the Heaviest Domains
- After You Clear 70%: Certification Deadlines
- Frequently Asked Questions
- The Alabama Plumbers and Gas Fitters Examining Board sets the passing score at 70% on a 75-question exam.
- 70% of 75 questions works out to roughly 53 correct answers - there is no partial credit for close attempts.
- General Knowledge (10 questions) and Sizing and Design (9 questions) carry the most weight of the 12 domains.
- The exam is open book and computer-based through Prov, Inc., with a 2.92-hour time limit and a $110 nonrefundable fee.
What the 70% Passing Score Actually Means
The Alabama Plumbers and Gas Fitters Examining Board publishes a single, unambiguous passing threshold for the Journeyman Plumber exam: 70%. That number applies to the current computer-based exam administered by Prov, Inc., not to any older paper-based version or to a different credential that happens to share the same acronym. Under the current bulletin, the exam consists of 75 multiple-choice questions and the passing score is 70% correct - nothing more complicated than that.
There's no separate cut score per domain. You don't need to individually clear 70% on Trade Math and 70% on Water Heaters - the Board evaluates your overall raw score across all 75 items. That means you can be genuinely weak in a low-weight domain like Roof Drain Systems and still pass comfortably, as long as you're strong across the domains that carry more questions. For a full breakdown of how each of the 12 content areas contributes to your score, see the AL-JP Exam Domains Guide.
The Math Behind 75 Questions and 2.92 Hours
Because the exam is fixed at 75 questions, the passing threshold translates into a concrete number of correct answers rather than an abstract percentage. Seventy percent of 75 is 52.5. Since you can't answer half a question, you need to land on the side of that line that rounds up - meaning your realistic target is roughly 53 correct answers out of 75. Missing more than about 22 questions puts you below the line.
That's a tight margin when you consider the exam's time allotment: 2.92 hours, as published in the current bulletin. Spread evenly, that gives you a little over two minutes per question - plenty of time if you know the material, but not much room for flipping through a stack of references on questions you haven't already narrowed down through study. Candidates who treat the open-book format as a substitute for preparation typically run out of clock before they run out of questions.
Key Takeaway
Aim to answer at least 53 of the 75 questions correctly. Build your practice sessions around timed 75-question sets that mimic the 2.92-hour limit so pacing becomes automatic.
Domain Weighting: Where the Questions Come From
The AL-JP exam draws its 75 questions from 12 official content domains, and those domains are not weighted equally. According to the current bulletin, General Knowledge is the largest single domain at 10 of 75 questions, followed by Sizing and Design at 9 of 75. Alabama Plumbing and Gas Law contributes 5 questions - a smaller share, but one that trips up candidates who assume the exam is purely technical plumbing content and skip the state-specific statutes and administrative code.
The remaining domains - Drawings and Plan Reading, Trade Math, Tools, Fixtures and Fittings, Drain Waste and Vents, Roof Drain Systems, System Installation, Water Heaters, and Safety - split the balance of the 75 questions between them. If you subtract the 10 General Knowledge questions, the 9 Sizing and Design questions, and the 5 Alabama Plumbing and Gas Law questions from 75, the other nine domains together account for 51 questions. That's still the majority of the exam, which is why a domain-by-domain study plan matters more than cramming any single area.
| Domain | Approximate Share of the 75 Questions |
|---|---|
| General Knowledge | 10 questions (largest single domain) |
| Sizing and Design | 9 questions |
| Alabama Plumbing and Gas Law | 5 questions |
| Drawings and Plan Reading, Trade Math, Tools, Fixtures and Fittings, Drain Waste and Vents, Roof Drain Systems, System Installation, Water Heaters, Safety | Remaining 51 questions distributed across these nine domains |
Because General Knowledge and Sizing and Design together represent almost a quarter of the exam, they deserve first priority in your study rotation. A misstep many candidates make is spending disproportionate time on niche topics like Roof Drain Systems while under-preparing for the two heaviest domains. The AL-JP Study Guide walks through how to sequence review sessions so the highest-weight material gets the most repetition, and the AL-JP Cheat Sheet is useful for last-week review of the smaller-weight domains you don't want to forget under time pressure.
Alabama Plumbing and Gas Law
Only 5 of 75 questions, but this domain is entirely Alabama-specific and can't be studied through generic plumbing references. Expect content drawn from Title 34, Chapter 37 of the Code of Alabama and Administrative Code Chapter 720.
- Know licensing authority and scope of the Board
- Understand renewal, CE, and certificate expiration rules
- Recognize what falls under Board jurisdiction versus local code enforcement
Why "Open Book" Doesn't Mean Easy
The AL-JP exam is open book, and Prov's testing rules allow highlighting, permanent tabs, and pen-only marginal notes without calculations in your references. A four-function calculator is also permitted. On paper, that sounds like a safety net. In practice, the 2.92-hour window means you don't have time to look up concepts you don't already understand - you only have time to confirm code sections or pull a specific number you've already located through tabbing.
The listed references for the current bulletin include the 2021 IPC, the 2021 IFGC, Mathematics for Plumbers and Pipefitters (8th edition), Modern Plumbing (8th edition), the 2022 Code of Alabama Title 34 Chapter 37, and Administrative Code Chapter 720 (2018). Candidates who pass tend to build a personal tabbing system in these exact references well before test day, organized around the domain structure rather than the book's table of contents. If you're unsure how demanding this really is compared to other trade exams, How Hard Is the AL-JP Exam? breaks down the difficulty factors in more depth.
Registration, Fees, and the 30-Day Eligibility Window
Before you can sit for the exam, you must meet the Board's eligibility requirements: two years of current apprentice-plumber experience, or completion of a Board-approved apprentice training program, along with required experience and lawful-presence documentation. The full eligibility breakdown, including how documentation is verified, is covered in AL-JP Requirements 2026.
Once approved, Prov, Inc. issues a 30-day eligibility window in which you must schedule and sit for your exam - either at a physical test center or through at-home Examroom proctoring. The exam fee is $110, paid to the Board, and it is nonrefundable regardless of outcome. If you pass, you're not finished paying: initial processing is $50 and the certificate itself is $75, bringing your total examination-and-initial-certification cost to $235 before you factor in any books or training materials. A full cost breakdown, including what's optional versus mandatory, is available in AL-JP Certification Cost 2026.
Key Takeaway
Don't schedule your Prov appointment until you're confident in your domain coverage - the 30-day window is tight, and the $110 fee doesn't come back if you fail.
If your timeline is uncertain, review AL-JP Exam Dates 2026 for how the testing windows and scheduling deadlines interact with the 30-day eligibility period, so you don't lose eligibility waiting to feel "ready."
Scheduling Your Prep Around the Heaviest Domains
A generic study calendar doesn't help much here - what matters is mapping your available weeks to the domains that carry the most questions. If you have roughly four weeks before your Prov appointment, front-load the two heaviest domains first, since they compound the most points toward your 53-question target.
General Knowledge and Sizing and Design
- Work through IPC and IFGC sections tied to these two domains - they cover 19 of the 75 questions combined
- Build your tab system in the code books now, not the week before the exam
Trade Math, Drawings and Plan Reading, Tools
- Practice calculator-based problems using only a four-function calculator, matching what Prov permits
- Review plan-reading symbols and isometric drawings until they're second nature
Fixtures and Fittings, Drain Waste and Vents, System Installation, Water Heaters
- These installation-heavy domains reward hands-on familiarity - cross-reference Modern Plumbing alongside the IPC
- Run full 75-question timed practice sets to internalize the 2.92-hour pace
Roof Drain Systems, Safety, Alabama Plumbing and Gas Law
- Finish with the smaller-weight domains, including the Alabama-specific statute and administrative code material
- Do a final open-book dry run with your actual tabbed references
For a deeper explanation of what belongs in each week and how to weight review time by question count rather than by how interesting a topic feels, the AL-JP Study Guide expands on this exact sequencing. You can also pair this schedule with timed practice sessions on our AL-JP practice test platform to see how your score trends toward or away from that 53-question target before exam day.
After You Clear 70%: Certification Deadlines
Passing the exam is not the finish line - it's the start of a set of Board deadlines. You must obtain your certificate within 90 calendar days after passing, and the $50 processing plus $75 certificate fee applies at that stage. Certificates then expire on December 31 each year and must be renewed annually for $75, with four approved continuing education hours required before November 1 of the year preceding renewal, subject to the initial-certification-year exemption and the documented age-65 exemption.
Missing the 90-day certification window or the CE deadline creates avoidable friction after you've already cleared the hardest part - the exam itself. Treat these dates with the same seriousness as your test date. If you're weighing whether the certification pays off given all these steps and fees, Is the AL-JP Certification Worth It? and AL-JP Salary Guide 2026 both address the return side of the equation, while AL-JP Jobs covers who actually hires certified journeyman plumbers in Alabama.
For candidates still deciding whether to pursue the credential at all, starting with the basics helps: What Is AL-JP? and AL-JP Certification lay out the fundamentals, while AL-JP Training covers how apprenticeship and Board-approved programs feed into eligibility. Once you're ready to test your knowledge against realistic, domain-weighted questions, practicing on our full-length AL-JP exam simulator is the most direct way to see where you stand relative to the 53-correct-answer target.
Frequently Asked Questions
The Alabama Plumbers and Gas Fitters Examining Board sets the passing score at 70% on the current 75-question, computer-based exam administered by Prov, Inc.
Seventy percent of 75 questions is 52.5, so you need approximately 53 correct answers to clear the passing threshold, since scores can't include partial questions.
No. The 70% threshold applies to your overall score across all 75 questions, not to each of the 12 domains individually. There is no separate minimum for domains like Alabama Plumbing and Gas Law or Roof Drain Systems.
It helps, but the 2.92-hour time limit means you don't have time to research unfamiliar concepts. Open-book access mainly benefits candidates who've already tabbed and studied their references, including the 2021 IPC, 2021 IFGC, and the Alabama-specific code materials.
The $110 exam fee is nonrefundable, and you'll need to work within Prov's scheduling process to retest. Reviewing your weakest domains - especially the higher-weight General Knowledge and Sizing and Design areas - before rescheduling gives you the best chance of closing the gap to 70%.