What Do the Arizona C-9, R-9, and CR-9 Concrete Licenses Cover?

The three classifications are closely related, but the license scope determines whether the contractor performs commercial work, residential work, or both.

Step 1: Confirm Which Concrete Classification You Need

Before buying books or scheduling an exam, decide whether your business needs commercial C-9, residential R-9, or dual CR-9 authority.

CR-9 can make sense for contractors planning to work in both residential and commercial concrete construction because it combines both scopes.

The current Arizona classification requirements list C-9, R-9, and CR-9 as requiring four years of qualifying hands-on and/or managerial experience.

Applicants also need the applicable Arizona Statutes and Rules Exam and trade examination unless an approved waiver applies.

Review the Arizona Registrar of Contractors classification requirements before applying.

Step 2: Know the Concrete Trade Exam Numbers

The current PSI fee for one trade examination is $66.

Two hours can feel generous until you spend eight minutes searching through a concrete book for one answer. Learning your references before test day is one of the easiest ways to protect your time.

Step 3: Learn the Official Exam Breakdown

The current concrete examination outline divides the 50 scored questions into six subject areas.

General Concrete plus Layout and Excavation account for 26 of the 50 questions. Those two areas alone represent more than half the exam.

Step 4: Make General Concrete Your Biggest Study Priority

General Concrete contains 16 questions, making it the largest single category.

Review subjects such as:

• Cement and concrete materials.
• Aggregates.
• Water-cement relationships.
• Admixtures.
• Concrete proportions.
• Batching and mixing.
• Transportation and placement.
• Consolidation.
• Finishing.
• Curing.
• Joints.
• Hot-weather placement.
• Cold-weather considerations.
• Concrete testing.
• Repair.
• Sawing and drilling.

Do not study concrete as a list of unrelated facts. Try to understand how material selection, water, placement, consolidation, finishing, and curing affect the final product.

Concrete remembers mistakes for a very long time. Usually right where everyone can see them.

Step 5: Study Layout and Excavation Carefully

Layout and Excavation contributes 10 questions, making it the second-largest category.

Review:

• Building layout.
• Lines and grades.
• Elevations.
• Excavation dimensions.
• Footing excavation.
• Trenching.
• Subgrade preparation.
• Compaction concepts.
• Backfilling.
• Site drainage.
• Excavation safety.

Practice reading dimensions and translating plans into field locations.

Concrete placement only goes well when the forms and excavation are where they are supposed to be. Finding out that the footing is two feet off after the truck arrives is generally considered poor scheduling.

Step 6: Learn Reinforcing Steel

Reinforcing Steel accounts for seven questions.

Study:

• Reinforcing bar sizes.
• Bar placement.
• Concrete cover.
• Splices.
• Development concepts.
• Supports and chairs.
• Ties.
• Dowels.
• Hooks.
• Placement tolerances.
• Reinforcement drawings.

The concrete exam includes structural reference material, so become comfortable finding reinforcing requirements inside your approved concrete code reference.

Reinforcing questions may mix practical field knowledge with code requirements. Knowing how rebar is normally installed is helpful, but knowing where the official requirement lives is even better.

Step 7: Understand Formwork

Formwork contributes six questions.

Review topics involving:

• Wall forms.
• Footing forms.
• Slab-edge forms.
• Columns.
• Beams.
• Form materials.
• Bracing.
• Supports.
• Form pressure.
• Release agents.
• Form removal.
• Construction tolerances.

Formwork has to hold the concrete where the plans say it belongs while fresh concrete is pushing against it.

That makes accuracy and support equally important. A beautifully built form in the wrong location is still wrong, just with impressive craftsmanship.

Step 8: Practice Concrete Estimating

Estimating contains five questions.

Practice calculating:

• Slab volume.
• Footing volume.
• Wall volume.
• Column volume.
• Concrete cubic yards.
• Form quantities.
• Reinforcing quantities.
• Linear measurements.
• Waste allowances.

Remember that concrete is commonly ordered by the cubic yard.

Practice converting dimensions carefully. Keep track of feet, inches, square feet, cubic feet, and cubic yards.

PSI allows a silent, nonprinting, non-programmable calculator during the examination. Practice with the same kind of calculator before test day.

Step 9: Do Not Ignore the Safety Section

Safety contributes six questions, which is more than 10% of the exam.

Review construction safety subjects such as:

• Excavation and trench safety.
• Personal protective equipment.
• Silica exposure.
• Concrete and masonry safety.
• Fall protection.
• Scaffolds.
• Ladders.
• Power tools.
• Material handling.
• Jobsite access.

OSHA questions often depend on exact distances, depths, protective requirements, or procedures.

Learn how to find those rules quickly instead of trusting a fuzzy memory from a safety meeting three jobs ago.

Step 10: Get the Correct Concrete Exam References

The concrete content outline currently linked by PSI identifies several references that may be used inside the examination center.

These include:

• 29 CFR Part 1926 OSHA construction regulations or PSI's applicable OSHA selections.
• International Building Code in editions identified on the PSI concrete outline.
• International Residential Code for One- and Two-Family Dwellings in the edition identified by PSI.
• ACI Building Code Requirements for Structural Concrete and Commentary as identified on the current PSI reference list.

For a coordinated set of concrete exam references, review the Arizona R-9/C-9 (CR-9) Concrete Contractor Exam Book Package.

You can also browse the full Arizona contractor exam prep collection for additional Arizona books and study resources.

Step 11: Know Which Concrete Books Are Study-Only References

Several important concrete references are used to help develop exam questions but are not allowed in the testing center.

The PSI outline currently lists study references including:

• Design and Control of Concrete Mixtures.
• Pipe and Excavation Contracting.
• Formwork for Concrete.
• Placing Reinforcing Bars, Recommended Practices.

Do not ignore these books simply because they stay home on exam day.

They help build the trade knowledge behind questions involving materials, excavation, forms, and reinforcement.

Think of them as your coaches. Very useful during training, but they do not get a chair beside you during the game.

Step 12: Prepare Your Approved Books Before the Exam

PSI permits approved references to be prepared before the examination.

Approved books may be:

• Highlighted.
• Underlined.
• Annotated.
• Indexed.
• Tabbed with permanent tabs.

Permanent tabs must be attached strongly enough that removing them would damage or tear the page.

Temporary tabs and Post-it style markers are not allowed.

Candidates also cannot bring unauthorized loose or attached papers inside approved references.

If you want a ready-made tab system, review the Arizona R-9/C-9 (CR-9) Concrete Exam Pre-Printed Tabs.

Step 13: Learn Where Information Lives

Open-book exams are much easier when you know which reference should answer each type of question.

A simple mental map helps:

• OSHA: worker safety, trenches, fall protection, equipment, and jobsite hazards.
• IBC: commercial building requirements and structural construction rules.
• IRC: residential footings, foundations, slabs, and one- and two-family dwelling requirements.
• ACI structural concrete reference: reinforcement, structural concrete, cover, placement, and related concrete requirements.

During practice, identify the subject before opening a book.

If you can decide which reference contains the answer in five seconds instead of 45, you have already saved valuable test time.

Step 14: Use a Four-Week Concrete Study Plan

Adjust the schedule based on your field experience. A concrete finisher may need more time with reinforcing and excavation. A superintendent may be strong on layout but need more detailed concrete-mixture review.

Step 15: Practice Under the Real Two-Hour Limit

At least some of your practice sessions should match the real exam.

Set a timer for 120 minutes and answer 50 questions.

Use a two-pass strategy:

1. First pass: Answer questions you know or can research quickly.
2. Second pass: Return to difficult calculations and longer reference searches.

Do not spend ten minutes fighting one question before you have seen the rest of the test.

One stubborn question should not be allowed to take over the entire jobsite.

Step 16: Watch the Wording Carefully

Many contractor exam questions contain one word that changes everything.

Watch for:

• MINIMUM
• MAXIMUM
• FIRST
• MOST
• LEAST
• NOT
• EXCEPT
• REQUIRED
• PROHIBITED

Read the complete question before choosing an answer.

Then compare the wording of the question with the wording in the reference. An answer that is almost correct can still cost exactly the same number of points as one that is wildly wrong.

Step 17: Know the Current PSI Retake Rules

If you do not pass the trade examination, current PSI rules require a 30-day waiting period before retaking the failed exam.

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

PSI provides diagnostic information after an unsuccessful examination.

Use those results to guide your next study plan. If Layout and Excavation caused the problem, study Layout and Excavation. Repeating your favorite General Concrete chapter because it makes you feel productive is not the same thing.

Step 18: Remember the Arizona Statutes and Rules Exam

Concrete applicants may also need to complete the Arizona Statutes and Rules Exam, commonly called the SRE.

The SRE is an online computer-based course and examination maintained by the Arizona Registrar of Contractors.

It focuses on Arizona contractor laws and rules instead of concrete trade knowledge.

Current PSI information lists the SRE cost at $61.

Check the Arizona ROC contractor licensing instructions for current examination and waiver requirements.

Step 19: Passing the Exam Is Only Part of Getting Licensed

Passing the concrete trade exam is a major milestone, but it does not automatically create an Arizona contractor license.

The full licensing process can also involve:

• Choosing C-9, R-9, or CR-9.
• Designating the qualifying party.
• Documenting qualifying experience.
• Completing the SRE when required.
• Passing the concrete trade examination.
• Completing required background checks.
• Obtaining the appropriate contractor license bond.
• Providing required identification and business information.
• Submitting the Arizona ROC license application.
• Paying applicable licensing fees.

Always follow the current Arizona Registrar of Contractors instructions when submitting your application.

A Simple Arizona Concrete Exam Roadmap

1. Choose C-9, R-9, or dual CR-9 based on your intended work.
2. Confirm the current four-year experience requirement.
3. Determine whether an examination waiver applies.
4. Complete or plan for the Arizona SRE.
5. Review the current PSI concrete content outline.
6. Obtain the exact approved exam references.
7. Separate approved references from study-only books.
8. Prepare approved references with permanent tabs and highlighting.
9. Spend the most time on General Concrete.
10. Study Layout and Excavation carefully.
11. Review Reinforcing Steel and Formwork.
12. Practice concrete estimating and volume calculations.
13. Study OSHA construction safety.
14. Learn which book answers which type of question.
15. Practice code and reference lookups under a timer.
16. Take full 120-minute practice examinations.
17. Review every missed question and find the supporting reference.
18. Confirm current PSI test-day rules before your appointment.
19. Complete the Arizona ROC licensing process after passing.

Arizona C-9, CR-9 and R-9 Concrete Exam Prep Resources

The Arizona concrete exam covers a wide range of trade knowledge, but the official breakdown gives you a clear path.

General Concrete is the largest section. Layout and Excavation comes next. Reinforcing Steel, Formwork, Safety, and Estimating make up the rest.

The smartest study plan is not to study everything equally. Put your time where the questions are.

When you are ready to prepare, explore the Arizona concrete contractor exam preparation resources from Contractor Exam Preps. The right references, solid concrete knowledge, quick book navigation, and repeated timed practice can make the Arizona C-9, CR-9, or R-9 Concrete Contractor exam much easier to manage.