- What Is the AZ-B2 Certification?
- Who Needs the AZ-B2 Trade Exam?
- Exam Format and Scoring
- The 10 Subject Areas Tested
- What You Can Bring Into the Exam Room
- Fees, Registration, and Retake Rules
- Experience and Licensing Requirements
- Building a Domain-Weighted Study Plan
- After You Pass: Licensing Steps
- Frequently Asked Questions
- AZ-B2 covers new commercial structures or additions with labor and materials totaling $2,000,000 or less.
- The scored outline has 100 questions in 240 minutes with a 70% passing standard.
- Concrete (14 items) and Metals (13 items) carry the most weight of the 10 subject areas.
- The PSI trade exam costs $66 per attempt; the separate ROC Statutes and Rules Exam costs $61.
What Is the AZ-B2 Certification?
The AZ-B2 credential is the trade competency exam Arizona's Registrar of Contractors (ROC) requires for the General Small Commercial Contractor classification. It is not a residential license, and it is not the same acronym you might find attached to other industries - on azb2exam.com, "AZ-B2" always refers to this specific ROC commercial classification, tested through PSI's computer-based examination system.
B-2 authorizes work on new commercial construction or additions where the total labor and materials do not exceed $2,000,000. Specialty systems - electrical, plumbing, fire protection, air conditioning, boiler, swimming pool, spa, and water-well work - fall outside the classification's scope and must be subcontracted to contractors holding the appropriate specialty license.
If you're still sorting out how this classification differs from adjacent ones, our What Is AZ-B2? and AZ-B2 Meaning guides break down the terminology in plain language before you dive into exam prep.
Who Needs the AZ-B2 Trade Exam?
The qualifying party of a business seeking a B-2 license from the Arizona Registrar of Contractors must pass this trade exam. That typically means owners, qualifying officers, or dedicated qualifying-party employees at small and mid-size commercial general contracting firms - companies that build strip retail centers, small office buildings, light industrial structures, tenant improvements, and similar commercial additions within the $2,000,000 project ceiling.
Because specialty trades are excluded from the classification's direct scope, B-2 holders function primarily as general contractors coordinating subcontractors and directly performing structural, sitework, and finish-related scopes themselves. For a broader look at where this credential fits into a contracting career, see AZ-B2 Jobs and Is the AZ-B2 Certification Worth It?
Exam Format and Scoring
The AZ-B2 trade examination is computer-based and multiple-choice, delivered either at a physical PSI test center or through remote proctoring. The scored outline consists of 100 questions with 240 minutes allotted and a 70% passing standard.
PSI may insert 5-10 additional unscored experimental questions somewhere within that same time window. These questions are indistinguishable from scored items during the test, so the 100-question figure describes the scored base rather than a guaranteed total number of items you'll see on screen. Plan your pacing around the full 240-minute window rather than trying to count questions.
Key Takeaway
Budget your time against the 240-minute clock, not a fixed item count - unscored experimental questions mean the on-screen total can exceed 100 without affecting your scored result.
The trade exam outline referenced here is effective May 9, 2024, while PSI's general Arizona bulletin carries a February 18, 2026 date. Details on scheduling windows and how these dates affect registration are covered in AZ-B2 Exam Dates 2026, and the exact scoring mechanics are broken down further in AZ-B2 Passing Score 2026.
The 10 Subject Areas Tested
The AZ-B2 outline organizes its 100 scored questions across ten subject areas. Below is the official item-count allocation:
| Domain | Item Count |
|---|---|
| Concrete | 14 |
| Metals | 13 |
| Carpentry | 12 |
| Safety | 12 |
| Sitework | 9 |
| General Building Code | 9 |
| Masonry | 10 |
| Thermal and Moisture Protection | 10 |
| Finishes | 6 |
| Doors and Windows | 5 |
Concrete is the single largest domain, followed closely by Metals - together they represent more than a quarter of the scored questions. A candidate who under-prepares in either area faces a disproportionate risk of falling short of the 70% threshold.
Concrete
The largest domain on the outline. Candidates should be comfortable with placement, curing, reinforcement, formwork, and inspection concepts as they apply to small commercial slabs, footings, and structural elements.
- Highest single-domain weight at 14 items
- Frequently intersects with General Building Code questions on structural requirements
Metals
The second-largest domain, covering structural and miscellaneous metal work common in small commercial construction, including fastening, framing components, and code-driven installation practices.
- 13 scored items
- Often paired conceptually with Carpentry in mixed structural systems
Safety
A 12-item domain reflecting jobsite safety expectations tied to OSHA 29 CFR Part 1926, which is also one of the permitted open-book references during the exam.
- Tests practical jobsite hazard awareness, not just memorized rule numbers
- Overlaps with the reference material allowed in the testing room
For a full walkthrough of every domain - including Sitework, Masonry, Carpentry, Thermal and Moisture Protection, Doors and Windows, Finishes, and General Building Code - see the AZ-B2 Exam Domains 2026 guide, which goes deeper into subtopics within each of the ten areas listed above.
What You Can Bring Into the Exam Room
AZ-B2 uses restricted-reference, open-book testing. That means you are permitted to consult specific references during the exam, but not any study material you choose:
- 2018 International Building Code (IBC) - permitted
- 2018 International Residential Code (IRC) - permitted
- OSHA 29 CFR Part 1926 - permitted
Other books listed as study-only resources are not allowed into the testing room, even though they may be useful during preparation. Pre-existing highlighting, underlining, annotations, and permanent tabs already in your permitted references are allowed under this Arizona outline - but you cannot add loose papers, sticky notes that come detached, or write in the books during the actual test session.
Because the open-book format rewards familiarity over memorization, knowing exactly where to find load tables, safety provisions, and code sections inside your permitted references matters as much as understanding the concepts themselves. Tab your IBC, IRC, and OSHA references well before test day.
Fees, Registration, and Retake Rules
Two separate costs apply to the AZ-B2 path:
- PSI Trade Exam: $66 per attempt
- ROC Statutes and Rules Exam (SRE): $61, completed as a separate online exam/course
These are distinct requirements - passing the PSI trade exam does not satisfy the SRE, and vice versa. Both must be completed as part of the path to licensure. A detailed breakdown of every cost involved, including how these two fees fit into the overall budget, is available in AZ-B2 Certification Cost 2026.
If you don't pass the trade exam on your first attempt, Arizona's retake rules require a 30-day wait before scheduling again. That waiting period extends to 90 days once you reach your fourth and any subsequent attempt. Given the $66 fee applies to every attempt, repeated failures add up quickly - which is one more reason to treat your first sitting seriously rather than as a "practice run."
Key Takeaway
Because retakes cost $66 each and trigger mandatory waiting periods, thorough preparation before your first attempt is more cost-effective than learning through repeated failures.
Experience and Licensing Requirements
Passing the trade exam is only one piece of qualifying for a B-2 license. The qualifying party ordinarily needs four years of relevant practical or management experience, with at least two of those years falling within the preceding ten years. Approved technical training or education can offset some of this requirement, but that credit is capped at two years - meaning classroom or program credit alone cannot fully replace hands-on experience.
Beyond experience, applicants must also satisfy:
- Completion of the applicable SRE and trade exam requirements before submitting the license application
- Application submitted within two years of passing the exam
- An appropriate contractor bond
- Business-entity standing in good order
- Background checks
- Legally required workers' compensation coverage
For a complete eligibility checklist, including how experience credit is documented and verified, review AZ-B2 Requirements 2026.
Building a Domain-Weighted Study Plan
Given the fixed 240-minute, 100-question scored format and the uneven weighting across the ten subject areas, an effective study plan allocates time proportionally rather than treating every domain equally. Concrete and Metals alone account for 27 of the 100 scored items, so a generic "one week per topic" approach wastes time on lightly weighted areas like Doors and Windows (5 items) at the expense of heavily weighted ones.
Concrete and Metals
- Work through placement, reinforcement, and structural metal topics first since they represent the largest point pools
- Cross-reference IBC sections you'll actually be permitted to use on exam day
Carpentry and Safety
- Pair Carpentry concepts with structural framing questions
- Study OSHA 29 CFR Part 1926 directly from the permitted reference, since it's usable open-book
Masonry, Thermal/Moisture Protection, Sitework, General Building Code
- Cover these mid-weighted domains together since they share code-driven logic
Finishes, Doors and Windows, Full Review
- Finish the lightest-weighted domains
- Run full-length timed practice under the 240-minute constraint
This kind of weighted approach is explained in more depth, along with pacing drills and reference-tabbing strategy, in the AZ-B2 Study Guide 2026. If you're trying to gauge realistically how much preparation time you need before committing to a date, How Hard Is the AZ-B2 Exam? and AZ-B2 Pass Rate 2026 both offer useful context grounded in the exam's actual structure rather than generalized exam anxiety advice.
Running full-length timed simulations on our practice test platform before test day helps you get comfortable with the 240-minute pace and the open-book lookup process, rather than discovering pacing problems for the first time at the PSI testing center.
After You Pass: Licensing Steps
Passing the PSI trade exam does not immediately make you licensed. You still need to finish the SRE if you haven't already, assemble your experience documentation, secure your bond, confirm your business-entity standing, and submit your application within two years of your passing exam date. Missing that two-year window means you'd need to retest.
Once licensed, B-2 holders operate under Arizona's biennial renewal framework, which requires a renewal application, the applicable fee, and maintenance of a valid bond. Treat renewal as an ongoing administrative obligation rather than a one-time finish line.
For a condensed, single-page reference you can use while assembling your application or doing last-minute review, bookmark the AZ-B2 Cheat Sheet 2026. And if you're weighing whether the classification fits your business goals against the time and cost involved, AZ-B2 Salary Guide 2026 and Is the AZ-B2 Certification Worth It? take a closer, qualitative look at that decision.
Frequently Asked Questions
B-2, General Small Commercial Contractor, covers new commercial structures or additions where total labor and materials do not exceed $2,000,000. Electrical, plumbing, fire protection, air conditioning, boiler, swimming pool, spa, and water-well work must be subcontracted to properly licensed specialty contractors.
The scored outline contains 100 questions with 240 minutes allotted and a 70% passing standard. PSI may add 5-10 unscored experimental questions within that same time window, so the on-screen total can exceed 100.
No. Only the 2018 International Building Code, 2018 International Residential Code, and OSHA 29 CFR Part 1926 are permitted as open-book references. Other study-only materials are not allowed in the testing room, though pre-existing highlighting, underlining, and permanent tabs in your permitted books are allowed.
The PSI trade exam costs $66 per attempt, and the separate online ROC Statutes and Rules Exam (SRE) costs $61. These are distinct fees for distinct requirements - both must be completed as part of licensure.
You must wait 30 days before retesting. If you reach your fourth attempt or beyond, the required waiting period extends to 90 days. Each attempt requires paying the $66 fee again.
No. You also need to complete the SRE, document four years of relevant experience (with at least two years within the preceding ten and a two-year cap on education credit), secure a contractor bond, pass background checks, maintain workers' compensation, and submit your application within two years of passing.