What Does the Arizona B-2 License Cover?

Arizona calls B-2 the General Small Commercial Contractor classification.

Under the current scope, B-2 allows commercial construction involving a new structure or addition where the total project is $2,000,000 or less, including labor and materials.

The structure may be built for the support, shelter, or enclosure of:

• People.
• Animals.
• Movable property.

The scope also includes supervision, management, and direct or indirect supervision of work performed on qualifying projects.

B-2 Is Different From B-1

B-1 is Arizona's broader General Commercial Contractor classification. B-2 is specifically designed for qualifying small commercial construction.

The biggest practical B-2 limitation is the project value. A qualifying B-2 project cannot exceed $2,000,000 including labor and materials.

Contractors expecting to pursue commercial projects above that limit should review whether the broader B-1 classification better fits their business.

Interestingly, PSI currently uses the same trade examination for B-1, B-2, KB-1, and KB-2.

So the license scopes differ, but the technical examination is shared.

Specialty Work That Must Be Subcontracted

B-2 is a general commercial classification, but it does not give the contractor unlimited specialty-trade authority.

The current B-2 scope requires work related to the following systems to be subcontracted to appropriately licensed contractors:

• Electrical.
• Plumbing.
• Fire-protection systems.
• Air-conditioning systems.
• Boilers.
• Swimming pools.
• Spas.
• Water wells.

A B-2 contractor may supervise and coordinate the overall project, but specialized licensing rules still apply.

General contractor does not mean "every trade wearing one hard hat."

Step 1: Confirm the Experience Requirement

Arizona currently lists four years of qualifying hands-on and/or managerial experience for B-2 General Small Commercial Contractor applicants.

The standard examination requirements are:

• Arizona Statutes and Rules Exam, or SRE.
• Applicable commercial general-building trade examination.

Certain examination waivers may be available under Arizona ROC rules, so applicants should confirm their individual circumstances before registering.

Review the Arizona ROC classification requirements before beginning the application process.

Step 2: Know the Current B-2 Exam Numbers

Four hours gives you time for code lookups, but not enough time to begin a personal relationship with every chapter in the International Building Code.

Step 3: Learn the Official B-2 Exam Breakdown

Step 4: Make Concrete Your First Major Study Area

Concrete is the largest section with 14 questions.

Review:

• Concrete ingredients.
• Mix proportions.
• Forms.
• Reinforcing steel.
• Footings.
• Foundations.
• Slabs.
• Walls and columns.
• Placement.
• Consolidation.
• Curing.
• Joints.
• Concrete quantities.
• Weather conditions.

PSI lists Design and Control of Concrete Mixtures as a study-only reference.

Practice concrete calculations until cubic yards stop feeling like a surprise guest.

Step 5: Study Structural Metals

Metals contains 13 questions.

Review:

• Structural steel.
• Columns.
• Beams.
• Steel joists.
• Joist girders.
• Steel decking.
• Bolted connections.
• Welding concepts.
• Handling structural members.
• Erection procedures.
• Steel safety.

PSI lists Handling and Erection of Steel Joists and Joist Girders as study-only material.

Commercial construction often uses more structural steel than residential projects, so this section deserves serious preparation.

Step 6: Prepare Thoroughly for Carpentry

Carpentry contributes 12 questions.

Study:

• Wall framing.
• Floor framing.
• Roof framing.
• Headers.
• Joists.
• Rafters.
• Trusses.
• Sheathing.
• Wood products.
• Fasteners.
• Connections.
• Construction layout.

Carpentry and Building Construction is currently listed as a study-only reference.

Even a commercial contractor who spends most days coordinating subcontractors needs to understand how the building actually goes together.

Step 7: Treat OSHA Safety as a Major Subject

Safety also contains 12 questions.

Review OSHA topics involving:

• Fall protection.
• Scaffolds.
• Ladders.
• Excavation and trenching.
• Personal protective equipment.
• Electrical hazards.
• Steel erection.
• Concrete operations.
• Hand and power tools.
• Material handling.
• Jobsite access.
• Housekeeping.

OSHA 29 CFR Part 1926 is currently approved for use inside the examination center.

Safety is 12% of the exam. That is not a chapter to skim while waiting in the parking lot.

Step 8: Study Masonry

Masonry contributes 10 questions.

Review:

• Concrete masonry units.
• Brick.
• Stone.
• Mortar.
• Grout.
• Reinforcement.
• Bond patterns.
• Lintels.
• Flashing.
• Movement joints.

Modern Masonry: Brick, Block, Stone is one of PSI's current study-only references.

Step 9: Learn Thermal and Moisture Protection

Thermal and Moisture Protection adds another 10 questions.

Study:

• Roofing systems.
• Roof underlayment.
• Flashing.
• Waterproofing.
• Dampproofing.
• Insulation.
• Sealants.
• Weather barriers.
• Roof drainage.
• Moisture control.

Commercial buildings become surprisingly unpopular when water begins participating in the interior design.

Step 10: Do Not Underestimate Sitework

Sitework contributes nine questions.

Study:

• Excavation.
• Grading.
• Compaction.
• Soils.
• Trenching.
• Backfill.
• Drainage.
• Site preparation.
• Earthwork quantities.
• Equipment basics.

PSI lists Pipe and Excavation Contracting as one of the study-only references.

Sitework mistakes tend to affect everything above them, which is a rather impressive amount of responsibility for dirt.

Step 11: Master General Building Code Questions

General Building Code contains nine questions.

The current examination allows both the 2018 International Building Code and the 2018 International Residential Code.

Practice finding:

• Occupancy classifications.
• Construction types.
• Building height and area.
• Fire-resistance requirements.
• Means of egress.
• Exit requirements.
• Stairs.
• Guards.
• Structural provisions.
• General building requirements.

For a commercial contractor, the IBC should become one of your closest exam-day friends.

Step 12: Know Which Code Book to Open

You have both the IBC and IRC available, so do not waste time searching the wrong code.

• IBC: Commercial building requirements, occupancies, construction types, egress, fire resistance, and broad commercial code provisions.
• IRC: Residential construction topics that may appear within the shared general-building examination.
• OSHA: Worker safety and construction-site protection.

Train yourself to identify the subject before reaching for a book.

Opening the correct reference is one of the fastest lookup techniques available, and somehow it costs nothing.

Step 13: Review Finishes

Finishes contributes six questions.

Review:

• Gypsum board.
• Painting.
• Wall finishes.
• Ceiling finishes.
• Floor finishes.
• Surface preparation.
• Interior trim.
• Exterior finish materials.

Six questions is enough to matter, especially on an exam where every correct answer moves you closer to 70%.

Step 14: Review Doors and Windows

Doors and Windows contains five questions.

Study:

• Door types.
• Frames.
• Hardware.
• Fire-rated openings.
• Window installation.
• Flashing.
• Weather protection.
• Glazing concepts.
• Egress relationships.

This is the smallest category, but five questions can still be the difference between passing and seeing the PSI registration page again.

Step 15: Know the Current Exam-Room References

PSI currently lists the following materials as allowed inside the B-2 examination center:

• Code of Federal Regulations, 29 CFR Part 1926 OSHA, with the latest available amendments, or the applicable PSI selections.
• International Residential Code for One- and Two-Family Dwellings, 2018.
• International Building Code, 2018.

Step 16: Know the Current Study-Only References

PSI currently lists the following materials as study references that are not allowed inside the examination center:

• Design and Control of Concrete Mixtures, 2011 or 2016.
• Pipe and Excavation Contracting, 1987 or 2011.
• Handling and Erection of Steel Joists and Joist Girders, 2006 or 2008.
• Carpentry and Building Construction, 2010 or 2016 Student Edition.
• Modern Masonry: Brick, Block, Stone, 8th or 9th Edition.

These books still matter because PSI may create questions from their material and from general industry practices.

Study them before test day. They do not get to come with you just because they helped write the questions.

Step 17: Prepare Approved Books Correctly

PSI permits candidates to prepare approved references before testing.

Approved books may be:

• Highlighted.
• Underlined.
• Annotated before the examination.
• Indexed.
• Tabbed with permanent tabs.

Candidates may not write, highlight, underline, or add indexing during the examination.

Temporary removable tabs such as Post-it notes are prohibited.

Unauthorized additional papers, whether loose or attached, are also prohibited.

For B-2-specific book organization, review the Arizona B and B-2 pre-printed exam tabs.

Step 18: Practice Construction Math

B-2 candidates should be comfortable with calculations involving:

• Area.
• Volume.
• Cubic yards.
• Concrete quantities.
• Roof areas.
• Linear measurements.
• Material quantities.
• Sitework volumes.
• Basic slopes.
• Estimating calculations.

PSI currently permits a silent, nonprinting, non-programmable calculator.

Use the same type during practice so exam day does not include a surprise calculator tutorial.

Step 19: Consider the NASCLA Alternative

B-2 applicants currently have a trade-exam choice.

PSI's official outline states that Arizona applicants applying for B-1 or B-2 may choose either:

• The Arizona ROC General Commercial trade examination.
• The NASCLA Accredited Examination for Commercial General Building Contractors.

These are different examinations with different reference lists and testing systems.

The NASCLA route may be attractive to contractors planning to pursue general-building licenses in additional participating jurisdictions.

If you choose NASCLA, study specifically for NASCLA rather than mixing the Arizona PSI reference list with the NASCLA book list.

Step 20: Arizona PSI or NASCLA?

Compare both current candidate bulletins before buying books.

You can also browse Arizona and NASCLA exam-prep resources from Contractor Exam Preps.

Step 21: Use a Structured B-2 Prep Course

Candidates who prefer guided preparation can review the Arizona B and B-2 online exam prep course.

A structured course can help organize study topics, practice questions, reference navigation, and timed test preparation.

Because exam outlines change, compare any course or book package against PSI's latest official B-1/B-2/KB-1/KB-2 outline before exam day.

Step 22: Use a Six-Week B-2 Study Plan

Step 23: Practice Under the Real Four-Hour Limit

Complete full 100-question practice exams using the actual 240-minute limit.

Try this three-pass strategy:

1. First pass: Answer questions you know without using a reference.
2. Second pass: Complete quick IBC, IRC, and OSHA lookups.
3. Third pass: Return to difficult calculations and longer questions.

Do not spend ten minutes on one masonry question while several easy safety questions sit unanswered.

Passing the entire exam is the goal. Winning an argument with Question 47 is not a separate license requirement.

Step 24: Know the Current PSI Fees and Retake Rules

PSI currently charges $66 for one Arizona trade examination.

The Arizona Statutes and Rules Exam currently costs $61.

Candidates who fail must currently wait 30 days before retaking the examination.

Candidates receive three attempts. After three failed attempts, a 90-day waiting period applies before another attempt.

Examination fees apply again when retesting.

Step 25: Do Not Forget the Arizona Statutes and Rules Exam

The trade exam tests technical commercial construction knowledge.

The Arizona Statutes and Rules Exam covers contractor laws and licensing rules.

The SRE is currently an online course and examination maintained through Arizona ROC.

Treat business and licensing law as a separate subject from concrete, steel, carpentry, and code study.

Review the Arizona ROC licensing process for current application instructions.

Step 26: Passing the Exam Does Not Automatically Issue a B-2 License

Passing the Arizona trade examination or an accepted NASCLA exam is only one part of the licensing process.

Applicants may also need to:

• Select the B-2 General Small Commercial classification.
• Designate the qualifying party.
• Document four years of qualifying experience.
• Complete the required trade-exam pathway.
• Complete the SRE unless an applicable waiver is granted.
• Complete required background-check steps.
• Obtain the required contractor license bond.
• Provide business and identification information.
• Submit the Arizona ROC license application.
• Pay applicable licensing fees.

Follow Arizona ROC's current application checklist rather than relying on an old application packet saved somewhere in the office.

Arizona B-2 Exam Roadmap

1. Confirm that B-2 fits your intended commercial projects.
2. Remember the current $2,000,000 project limit including labor and materials.
3. Verify your four years of qualifying experience.
4. Confirm your SRE and trade-exam requirements.
5. Decide between the Arizona trade exam and NASCLA if appropriate.
6. Obtain OSHA, the 2018 IBC, and the 2018 IRC for the Arizona PSI path.
7. Study the non-allowed concrete, excavation, steel, carpentry, and masonry references.
8. Make Concrete a top priority.
9. Study Metals heavily.
10. Study Carpentry and Safety.
11. Review Masonry and Thermal and Moisture Protection.
12. Study Sitework and General Building Code.
13. Review Finishes and Doors and Windows.
14. Practice construction math.
15. Practice fast IBC, IRC, and OSHA lookups.
16. Complete full four-hour practice exams.
17. Review every missed answer.
18. Check PSI's current outline immediately before testing.
19. Complete the Arizona ROC licensing process.

Arizona B-2 Exam Prep Resources

The B-2 examination is broad because general commercial contractors need to understand many parts of the building process, even when specialty subcontractors perform particular systems.

Conclusion: How to Pass the Arizona B-2 General Small Commercial Contractor Exam

Passing the Arizona B-2 General Small Commercial Contractor exam starts with understanding both the license and the examination. B-2 is not simply a smaller version of B-1 with easier questions. PSI currently uses the same technical trade examination for B-1, B-2, KB-1, and KB-2.

The current test contains 100 questions, allows 240 minutes, and requires a 70% passing score. The question distribution tells you exactly where to put your study time.

Concrete is the largest category with 14 questions. Metals follows with 13. Carpentry and Safety each contain 12 questions. Together, those four areas account for 51% of the examination.

Masonry and Thermal and Moisture Protection each contribute 10 questions. Sitework and General Building Code each contribute nine. Finishes adds six questions, while Doors and Windows adds five.

The approved exam-room references are equally important. PSI currently permits OSHA 29 CFR Part 1926, the 2018 International Residential Code, and the 2018 International Building Code. The concrete, excavation, steel-joist, carpentry, and masonry references are study-only.

That means you need real trade knowledge before testing. Do not expect the open-book format to rescue weak preparation. Learn concrete, steel, framing, masonry, sitework, roofing, and finishes before exam day, then use the approved books for targeted code and safety lookups.

Practice your IBC navigation. Commercial building questions can require fast searches involving occupancy, construction type, fire resistance, height, area, and means of egress. Practice OSHA searches for falls, scaffolds, ladders, trenching, PPE, steel erection, and tools.

Full-length practice should be part of your final preparation. Set a timer for four hours and answer 100 questions. Finish easy questions first, complete quick reference searches second, and leave the hardest calculations for the last pass.

B-2 applicants should also compare the Arizona trade exam with the NASCLA Accredited Commercial General Building examination. Arizona currently allows B-2 applicants to choose between these trade-exam paths. Contractors planning to pursue licenses in other NASCLA-participating jurisdictions may find that option worth considering.

Finally, do not forget the B-2 scope itself. The current classification applies to qualifying new commercial structures and additions with a project value of $2,000,000 or less, including labor and materials. Specialty systems such as electrical, plumbing, fire protection, HVAC, boilers, pools, spas, and water wells must be handled by appropriately licensed contractors.

Build your exam preparation the same way you would build a commercial project. Know the scope, organize the materials, handle the biggest sections first, inspect your weak areas, and finish with full practice runs. That approach is far more reliable than hoping all 100 questions happen to ask about your favorite part of construction.

Plain-Language Summary

The Arizona B-2 General Small Commercial Contractor license is designed for qualifying commercial construction involving new structures or additions with a total project value of $2,000,000 or less, including labor and materials.

The B-2 contractor may supervise and manage the overall project, but electrical, plumbing, fire protection, air conditioning, boilers, pools, spas, and water-well work must be subcontracted to properly licensed contractors.

Arizona currently requires four years of qualifying hands-on and/or managerial experience for B-2. Applicants must also satisfy the applicable Statutes and Rules Exam and trade-exam requirements.

PSI currently uses the same trade examination for B-1, B-2, KB-1, and KB-2. The exam contains 100 questions, allows 240 minutes, and requires a 70% passing score.

Concrete is the largest section with 14 questions. Metals contains 13. Carpentry and Safety each contain 12. Those four categories represent more than half of the test.

Masonry and Thermal and Moisture Protection each contain 10 questions. Sitework and General Building Code each contain nine. Finishes contains six, and Doors and Windows contains five.

Candidates should spend the most time studying concrete, structural steel, carpentry, OSHA safety, masonry, roofing and waterproofing, excavation, grading, and commercial building-code requirements.

PSI currently allows OSHA 29 CFR Part 1926, the 2018 International Residential Code, and the 2018 International Building Code inside the examination center.

Other PSI references covering concrete, excavation, steel joists, carpentry, and masonry are study-only. Candidates should learn that material before test day.

A strong preparation plan includes permanent tabs, highlighted and indexed approved books, construction math, fast IBC and OSHA lookup practice, and full 100-question exams completed within the four-hour limit.

B-2 applicants may also choose the NASCLA Accredited Examination for Commercial General Building Contractors instead of the Arizona general commercial trade exam. Candidates considering NASCLA should compare the separate reference list and testing requirements before choosing a path.

Passing the trade test is only part of getting licensed. Applicants must still complete applicable Arizona ROC requirements involving qualifying experience, the qualifying party, the SRE, background checks, bonding, business information, and the contractor application.

For Arizona B-2 study resources, courses, and reference tabs, visit the Contractor Exam Preps Arizona collection.