AZ-B2 Passing Score 2026: Exactly What You Need to Pass

The Exact Number You Need to Hit

If you're preparing for the Arizona B-2 General Small Commercial Contractor Trade Exam, the headline number is simple: 70%. That's the passing standard PSI applies to the scored outline for this Arizona Registrar of Contractors (ROC) trade examination. The scored base consists of 100 questions, delivered over a 240-minute testing window, in a computer-based multiple-choice format available at PSI test centers or through remote proctoring.

That 70% threshold is not a vague industry rule of thumb - it's the specific standard published for the trade-exam outline shared by B-1, B-2, KB-1 and KB-2 classifications, effective May 9, 2024. Because B-2 qualifies contractors to build new commercial structures or additions with total labor and materials of $2,000,000 or less, the exam is designed to confirm you understand the technical and code knowledge behind that scope - not to test unrelated trades like electrical or plumbing, which must be subcontracted to appropriately licensed contractors under this classification.

How the Score Actually Works

Understanding the mechanics behind the passing score matters more than memorizing the percentage. PSI administers this exam on behalf of the Arizona ROC, and the outline you're tested against is the same one used for B-1, B-2, KB-1, and KB-2 - meaning your prep materials and the underlying content blueprint are shared across those classifications, even though your license scope as a B-2 holder stays limited to small commercial work.

The exam is restricted-reference and open-book, but only for a specific short list: the 2018 International Building Code, the 2018 International Residential Code, and OSHA 29 CFR Part 1926. Other study-only references are not permitted in the room. Pre-existing highlighting, underlining, annotations, and permanent tabs in those allowed references are fine - but loose papers, additional attached notes, and writing in the books during the test are prohibited. You're also allowed a basic silent, nonprinting, non-programmable, non-scientific calculator. If you're testing remotely, know that physical scratch paper and breaks are not permitted during that session type.

None of this changes the 70% target, but it does change how you prepare. If you're relying on annotated code books as a crutch, you need those annotations built in well before test day - you can't add sticky notes the morning of. For a full walkthrough of the reference rules and what to expect in the room, see the AZ-B2 Study Guide 2026: How to Pass on Your First Attempt.

Domain-by-Domain: Where the 100 Questions Come From

The passing score is a single number, but it's built from 10 unevenly weighted content areas. Knowing the item counts per domain tells you where to spend your study hours, because missing a handful of questions in a 14-item domain hurts far more than missing the same number in a 5-item domain.

Concrete is the single largest domain at 14 items, followed closely by Metals at 13. Together with Carpentry and Safety, these four domains account for more than half of the entire scored outline. That's not a minor detail - it's the difference between passing comfortably and falling just short of 70%.

For a complete breakdown of what's actually tested inside each of these 10 areas - not just the item counts but the specific concepts examiners draw from - see the AZ-B2 Exam Domains 2026: Complete Guide to All 10 Content Areas.

Why Your Test Might Have More Than 100 Questions

Here's a detail candidates often overlook: PSI may add 5-10 unscored experimental questions within the standard testing time. These items are mixed in with the scored 100 and are not identified to you during the exam. That means your screen might show anywhere from 100 to 110 total questions, but only 100 of them count toward your score.

This also means you shouldn't panic if your exam feels slightly longer or shorter than expected in raw question count - the scored base of 100 items and the 70% standard remain constant regardless of how many experimental questions PSI happens to include on your specific form.

How Many Questions You Can Afford to Miss

With 100 scored questions and a 70% passing standard, the math is straightforward: you need roughly 70 correct answers on the scored portion. That leaves margin for error, but not a lot once you consider how the domains are weighted. Missing several questions in Concrete or Metals - the two largest domains - eats into your margin faster than missing questions in smaller domains like Doors and Windows (5 items) or Finishes (6 items).

This is why generic "study everything equally" advice doesn't serve AZ-B2 candidates well. A candidate who is weak in General Building Code (9 items) and weak in Sitework (9 items) has less at stake than a candidate who is weak in Concrete (14 items) alone. If you're trying to gauge how challenging this exam is likely to feel based on your current trade background, the How Hard Is the AZ-B2 Exam? Complete Difficulty Guide 2026 breaks down difficulty by domain and experience level.

If You Don't Pass: Retake Rules and Timing

Falling short of 70% isn't the end of the process, but it does cost time and money. Retakes require a 30-day wait after a failed attempt. If you reach a fourth attempt, the wait period extends to 90 days before you can sit again. Each attempt at the PSI trade examination costs $66, separate from the $61 online ROC Statutes and Rules Exam (SRE), so repeated attempts add up in both time and expense.

Because the SRE is a separate requirement from the trade exam covered by this passing-score standard, make sure you're clear on which exam you're preparing for and when each is due relative to your license application. Full cost details, including how the $66 and $61 fees fit into the total licensing picture, are covered in the AZ-B2 Certification Cost 2026: Complete Pricing Breakdown. For a look at how the passing standard connects to overall outcomes across candidates, see the AZ-B2 Pass Rate 2026: What the Data Shows.

Remember, too, that passing the trade exam is only one piece of licensure. You still need to meet the qualifying party's experience requirement - generally four years of relevant practical or management experience, with at least two of those years falling within the preceding ten, and technical training credit capped at two years. You must complete the applicable SRE and trade requirements before submitting your license application, and you must apply within two years of passing. The full eligibility picture, including bonding and background check requirements, is detailed in AZ-B2 Requirements 2026: Eligibility, Prerequisites & How to Qualify.

A Domain-Weighted Prep Plan

Rather than a generic study calendar, build your prep schedule around the actual item counts. The following timeline weights study time toward the domains that carry the most scored questions, while still ensuring every domain gets coverage before test day.

Practicing under realistic time pressure matters because 240 minutes across 100+ questions leaves little room for hesitation once test day arrives. Running full timed sessions on our AZ-B2 practice test platform before your exam date helps you calibrate pacing against the actual 70% target rather than guessing at your readiness. If you'd like a condensed reference to run through in the final days before your test, the AZ-B2 Cheat Sheet 2026: One-Page Review of Must-Know Facts summarizes the highest-yield facts in one page.

Once you've passed and moved through licensing steps like bonding and background checks, it's worth thinking beyond the exam itself. Many candidates ask whether the investment in time and fees pays off once licensed - that broader question is explored in Is the AZ-B2 Certification Worth It? Complete ROI Analysis 2026, and the kinds of roles that call for this classification are covered in AZ-B2 Jobs. You can also run more practice sets anytime at the main AZ-B2 practice test site to keep your recall sharp as your test date approaches.

Frequently Asked Questions