- What the AZ-B1 Certification Actually Covers
- Who Needs the B-1 Trade Exam
- Exam Format, Timing, and Scoring
- Registration, Fees, and Delivery Options
- Eligibility and Experience Requirements
- The 10 Trade Exam Domains
- Building a Domain-Weighted Study Schedule
- After You Pass: Licensing and Renewal
- Frequently Asked Questions
- The B-1 trade exam has 100 scored questions, a 4-hour limit, and requires a 70% passing score.
- PSI may add 5 to 10 unscored experimental questions you won't be able to identify.
- Concrete (14%) and Metals (13%) are the two heaviest-weighted domains on the outline.
- The trade-exam fee is $66, and passing scores must be used on a license application within two years.
What the AZ-B1 Certification Actually Covers
The Arizona B-1 General Commercial Contractor Trade Examination is the trade knowledge exam required by the Arizona Registrar of Contractors (AZ ROC) for qualifying parties seeking a B-1 general commercial contracting license. It's administered by PSI under a combined B-1/B-2/KB-1/KB-2 exam structure, which means the underlying question pool draws on shared commercial construction knowledge but is scored against the B-1 content outline currently in effect since May 9, 2024. If you're still asking what is AZ-B1 or trying to pin down the AZ-B1 meaning in the context of Arizona contractor licensing, this is the exam: a trade-specific, open-book, computer-delivered test - not a business/law exam and not a national certification from a private trade association.
People frequently confuse acronyms across industries, so it's worth being explicit: this article covers only the Arizona Registrar of Contractors' B-1 trade exam. Every figure referenced here - fees, time limits, question counts - is specific to that exam and sourced from the current PSI candidate bulletin (dated February 18, 2026) and the B-1 content outline.
Who Needs the B-1 Trade Exam
The B-1 exam is taken by the individual who will serve as the qualifying party on a commercial contracting license - typically an owner, project manager, or senior superintendent who can demonstrate hands-on trade and management experience. Employers hiring for AZ-B1 jobs generally look for candidates who either already hold, or are actively pursuing, this qualifying-party credential because it signals the company can legally bid and perform general commercial work in Arizona.
If you're unclear on what a licensed qualifying party is expected to know day-to-day, the exam content outline is the best proxy: it mirrors the trades a commercial general contractor supervises on a jobsite, from concrete formwork to finish carpentry to code compliance. For a plain-language breakdown of the credential itself, see what is AZ-B1 certification and what does AZ-B1 stand for.
Exam Format, Timing, and Scoring
The trade exam is open-book, computer-delivered, and multiple-choice. Candidates get:
- 100 scored questions, plus PSI may insert 5 to 10 unscored experimental questions mixed in without identification.
- A 4-hour time limit for the entire exam session.
- A 70% passing score on the scored items - experimental questions don't count toward or against your result.
Because you can't tell scored questions from experimental ones, the practical strategy is to treat every question with equal seriousness and manage your 4 hours as if all 100+ items count. For a deep dive into exactly how the cut score is calculated and what it means for your study targets, read AZ-B1 Passing Score 2026: Exactly What You Need to Pass.
Key Takeaway
Budget roughly 2 minutes per question inside your 4-hour window, but don't rush early domains like Sitework and Concrete - they carry heavier weight and deserve careful reading.
Approved References and Calculator
Because the exam is open-book, PSI allows three approved references at the test center: OSHA 29 CFR Part 1926, the 2018 International Building Code (IBC), and the 2018 International Residential Code (IRC). A basic silent, nonprinting, nonprogrammable calculator is also permitted. Knowing how to navigate these references quickly - using tabs, indexes, and section numbering - is arguably as important as memorizing content, since you won't have time to read cover-to-cover during a timed exam.
Registration, Fees, and Delivery Options
The trade-exam fee is $66, payable when you schedule through PSI. Candidates can choose between test-center delivery or remote-proctored delivery, giving flexibility for candidates who may be working full-time on active jobsites and need to schedule around project deadlines.
Once you pass, your results are valid for a limited window: exam results must be used for the license application within two years. That timeline matters if you're testing early to lock in a passing score before finishing other licensing steps like bonding or background checks.
For the full financial picture - combining the trade-exam fee with application, initial license, and renewal costs - see AZ-B1 Certification Cost 2026: Complete Pricing Breakdown. If you want to compare testing windows and how far in advance to schedule, AZ-B1 Exam Dates 2026: Testing Windows, Deadlines & Scheduling covers scheduling mechanics in more depth.
Eligibility and Experience Requirements
Before you can sit for the trade exam as a qualifying party, Arizona generally expects:
- Four years of practical or management trade experience, including two years within the preceding ten years.
- Approved technical education may substitute for up to two years of that experience requirement.
- Completion of the Arizona Statutes and Rules Training Course and Exam.
- A background check, bonding, and the formal license application steps through the AZ ROC.
These pieces run in parallel with - not necessarily after - your trade exam prep, so it's worth mapping out the full sequence early. The detailed prerequisites, documentation, and substitution rules are covered thoroughly in AZ-B1 Requirements 2026: Eligibility, Prerequisites & How to Qualify.
The 10 Trade Exam Domains
The B-1 content outline organizes the exam into ten domains that mirror how a commercial project actually gets built, from the ground up through finishes and code review. Two domains carry the heaviest scoring weight: Concrete at 14% and Metals at 13% - together accounting for more than a quarter of the scored questions.
Domain 2: Concrete (14% - largest domain)
Expect questions on formwork, reinforcement placement, mix design considerations, curing, and inspection points referenced against the 2018 IBC.
- Highest-weighted domain - prioritize this in your study schedule
Domain 4: Metals (13% - second largest)
Structural steel, connections, fasteners, and metal framing details that commercial GCs must supervise or verify on-site.
- Second-highest weight; pair your review with OSHA 1926 steel erection provisions
The remaining eight domains - Sitework, Masonry, Carpentry, Thermal and Moisture Protection, Doors and Windows, Finishes, Safety, and General Building Code - round out the outline at lower individual weights, but collectively they still make up the majority of the exam. Safety questions typically draw from OSHA 29 CFR Part 1926, while General Building Code questions lean on the 2018 IBC and 2018 IRC you'll have open at the test center.
For a domain-by-domain breakdown with study priorities for each of the ten areas, see AZ-B1 Exam Domains 2026: Complete Guide to All 10 Content Areas. And if you're trying to gauge overall difficulty before you commit to a study plan, How Hard Is the AZ-B1 Exam? Complete Difficulty Guide 2026 walks through what makes this exam challenging beyond just raw content volume.
| Domain | Relative Weight | Primary Reference |
|---|---|---|
| Concrete | 14% (highest) | 2018 IBC |
| Metals | 13% (second highest) | 2018 IBC / OSHA 1926 |
| Sitework | Lower weight | 2018 IBC |
| Safety | Lower weight | OSHA 29 CFR Part 1926 |
| General Building Code | Lower weight | 2018 IBC / 2018 IRC |
Building a Domain-Weighted Study Schedule
Generic study techniques only help if they're anchored to the actual weight distribution of this exam. Since Concrete and Metals together represent 27% of scored content, they deserve dedicated blocks rather than being folded into a general "materials" review.
Concrete and Sitework
- Work through IBC concrete provisions and formwork inspection sequences
- Practice locating sitework and excavation sections quickly in your open-book references
Metals and Masonry
- Review structural steel connection details and OSHA erection requirements
- Cross-reference masonry code sections against the 2018 IBC
Carpentry, Thermal/Moisture, Doors and Windows, Finishes
- Group these mid-weight domains together since they share IRC residential-adjacent details
- Practice timed multiple-choice sets to build 2-minutes-per-question pacing
Safety and General Building Code, plus full review
- Drill OSHA 1926 scenario questions
- Run a full 100-question timed simulation using only approved references
This kind of weighted scheduling matters more than any generic productivity trick. If you want a complete week-by-week plan built specifically around this outline, AZ-B1 Study Guide 2026: How to Pass on Your First Attempt expands on this structure in detail. It's also worth reviewing aggregate outcome trends before you set your own target date - AZ-B1 Pass Rate 2026: What the Data Shows discusses what's publicly known about candidate performance on this exam.
After You Pass: Licensing and Renewal
Passing the trade exam is one step in a larger licensing sequence. Once you have a passing score, you have two years to use it on a license application. General Commercial application and initial license fees total $780, and licenses renew every two years for $580. Budgeting for these costs alongside the $66 exam fee, bonding, and the Statutes and Rules course helps avoid surprises mid-process.
Many candidates also want to know whether the time and cost investment pays off relative to career outcomes. If you're weighing that decision, Is the AZ-B1 Certification Worth It? Complete ROI Analysis 2026 and AZ-B1 Salary Guide 2026: Complete Earnings Analysis dig into the broader career context beyond the exam itself. And once you're licensed, ongoing AZ-B1 training can help you stay current as code editions and outline requirements evolve.
Key Takeaway
Treat the $66 trade-exam fee as the smallest line item in your total licensing budget - application, license, and renewal fees add up to far more, so plan the full sequence before scheduling your exam date.
Before your test date, it's worth running through a condensed review of the facts most likely to trip up first-time candidates - time limit, passing score, reference materials, and domain weights. The AZ-B1 Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for exactly that kind of last-pass review. And if you want to practice under realistic timed conditions before test day, our practice test platform lets you simulate the 100-question, 4-hour format so you walk into the test center with the pacing already dialed in.
Frequently Asked Questions
There are 100 scored questions with a 4-hour time limit. PSI may also include 5 to 10 unscored experimental questions mixed into the exam without labeling them.
You need to score 70% on the scored questions. Experimental questions do not count toward this score either way.
The exam is open-book, and approved references are OSHA 29 CFR Part 1926, the 2018 International Building Code, and the 2018 International Residential Code. A basic silent, nonprinting, nonprogrammable calculator is also allowed.
Yes. PSI offers both test-center and remote-proctored delivery options for the B-1 trade exam, giving candidates flexibility in how they sit for it.
Yes. B-1 applicants may use the NASCLA Accredited Commercial General Building exam in place of the Arizona trade exam, which can benefit candidates who already hold that credential.
Exam results must be used for the license application within two years of passing, so plan your bonding, background check, and application steps within that window.