What Exactly Is the NASCLA Commercial General Building Exam?

NASCLA stands for the National Association of State Contractors Licensing Agencies.

Its Accredited Examination for Commercial General Building Contractors is a standardized national trade examination designed for commercial building contractors.

Instead of taking a completely different trade exam every time you apply in another participating jurisdiction, you may be able to send your NASCLA transcript to that state's licensing agency.

That can be useful for contractors who plan to expand beyond Tennessee.

Learn more from the official NASCLA Commercial General Building examination page.

What Tennessee License Do You Get With NASCLA?

Tennessee accepts the NASCLA National Commercial examination as a trade-exam pathway, but the Tennessee Board still determines the actual classification granted.

Tennessee's building classifications include:

• BC-B: Commercial Building Contractor.
• BC-b(sm): Small Commercial Contractor.
• BC-B,C: Combined Commercial and Industrial Contractor.
• BC: Full Residential, Commercial, and Industrial Building Contractor.
• Other combined or specialty building classifications.

Because NASCLA is specifically a Commercial General Building examination, contractors often look to it when pursuing commercial building authority.

However, do not assume that passing NASCLA automatically grants BC-B, BC-B,C, BC, residential authority, industrial authority, or Unlimited status.

Tell the Tennessee Board which classification you want and confirm that your NASCLA result satisfies the trade-exam requirement for that classification before completing the application.

Review the Tennessee Contractor Classification Outline for the current scope of each building classification.

When Is a Tennessee Contractor License Required?

Tennessee generally requires a contractor license before contracting when the total project is $25,000 or more.

Contracting can include:

• Bidding a regulated project.
• Offering to perform the work.
• Negotiating the contract price.
• Entering into the construction contract.
• Serving as a qualifying construction manager or consultant.

The license should be active before regulated bidding or contracting takes place.

A NASCLA passing score does not replace this requirement. You still need the Tennessee contractor license.

Step 1: Decide Whether the NASCLA Route Fits Your Goals

The NASCLA route can make sense for a contractor who plans to perform commercial general building work and may eventually seek licenses in several participating states.

It can be especially useful for:

• Commercial general contractors.
• Construction company owners.
• Qualifying Agents.
• Project managers moving into contractor licensing.
• Builders expanding across state lines.
• Contractors who want one portable commercial trade examination result.

If you only need one very narrow Tennessee classification, compare the NASCLA route with the state-specific exam before spending money on a large national reference library.

The NASCLA exam has a lot of books. Your bookshelf may begin looking like it also applied for a contractor license.

Step 2: Apply to NASCLA

Before scheduling the examination with PSI, you first apply through NASCLA's National Examination Database.

The current NASCLA application fee is $65.

NASCLA currently states that there are no experience prerequisites just to submit the examination application. That is different from Tennessee licensing, where construction experience matters when the Board evaluates the license classification and monetary limit.

Once NASCLA approves your application:

1. You receive your NASCLA candidate information.
2. Your eligibility is transmitted to PSI.
3. You receive instructions for scheduling the examination.
4. Your approval remains valid for one year.
5. You receive up to three attempts during that one-year eligibility period.

Apply through the official NASCLA examination application page.

Step 3: Schedule the NASCLA Exam With PSI

NASCLA currently uses PSI to deliver the Commercial General Building examination.

This is an important Tennessee distinction.

Tennessee moved its newly scheduled state contractor exams to Prov in 2026, but the national NASCLA Commercial General Building exam remains a NASCLA examination delivered through PSI.

The current PSI NASCLA examination fee is $130.

Step 4: Understand the Current NASCLA Exam

The July 2026 PSI Candidate Information Bulletin lists:

• 115 scored questions.
• 10 additional unscored pretest questions.
• 330 minutes, or 5.5 hours.
• 81 correct scored answers required to pass.
• $130 PSI examination fee.
• Open-book format.

Because the 10 experimental questions are mixed into the examination, you may see a total of 125 questions even though only 115 count toward your score.

You will not know which 10 are experimental, so unfortunately "that one looked weird" is not a reliable skipping strategy.

Step 5: Know the NASCLA Exam Breakdown

Procurement and Contracting Requirements is the largest category with 31 questions.

General Requirements adds 25, and Site Construction contributes another 15.

Those three categories alone account for 71 of the 115 scored questions.

Step 6: Understand Why This Exam Has So Many Books

The NASCLA Commercial General Building exam covers an enormous amount of construction territory.

You are not just studying the International Building Code.

The exam reaches:

• Accessibility.
• OSHA safety.
• Project management.
• Jobsite management.
• Contracts and procurement.
• Concrete.
• Reinforcing steel.
• Masonry.
• Structural steel.
• Steel decking.
• Wood framing and trusses.
• Roofing.
• Excavation.
• Mechanical systems.
• Electrical systems.
• Stormwater management.
• EIFS.
• Green building.
• Gypsum construction.

The goal is not to memorize thousands of pages. The goal is to know which reference contains the answer and how to reach it quickly.

Step 7: Get the Current NASCLA Reference Books

The July 2026 PSI bulletin lists a large reference library for the NASCLA Commercial General Building exam.

Major references currently include:

• Mechanical and Electrical Systems for Construction Managers, 4th Edition, 2024.
• ICC A117.1-2017 Accessible and Usable Buildings and Facilities.
• BCSI Guide to Good Practice for Wood Trusses, 2018 updated 2020, or 2025 edition.
• Carpentry and Building Construction, 2016.
• OSHA 29 CFR Part 1926, 2023 with amendments, or the approved PSI OSHA excerpts.
• Construction Jobsite Management, 4th or 5th Edition.
• Construction Project Management, 4th or 5th Edition.
• NASCLA Contractors Guide to Business, Law and Project Management, Basic 14th Edition.
• Erectors' Manual for Precast Concrete Products, 2nd Edition.
• Green Building Fundamentals, 2nd Edition.
• Gypsum Construction Handbook, 7th Edition.
• Technical Digest No. 9 for Steel Joists and Joist Girders.

The list continues with several structural and specialty references.

More Current NASCLA References

• International Building Code, 2021 or 2024.
• ACI 318-14 or ACI 318-19 Building Code Requirements for Structural Concrete.
• Training and Certification of Field Personnel for Unbonded Post-Tensioning, Level 1 Field Fundamentals.
• Modern Masonry, 9th Edition.
• Pipe and Excavation Contracting, 2011.
• Principles and Practices of Commercial Construction, 11th Edition, 2024.
• Roofing Construction and Estimating.
• Placing Reinforcing Bars, 10th Edition.
• Steel Deck Institute Manual of Construction with Steel Deck.
• The Contractor's Guide to Quality Concrete Construction, 4th Edition.
• Developing Your Stormwater Pollution Prevention Plan, EPA.
• ANSI/EIMA 99-A-2017 for EIFS and EIFS with Drainage.

PSI also provides a physical diagram or blueprint packet at the testing center.

For a coordinated reference set, review the Tennessee NASCLA Commercial Building Contractor Exam Book Package.

Step 8: Do Not Confuse the Two NASCLA Business Books

This is a common source of confusion.

The national NASCLA trade examination currently uses:

Tennessee's separate state Business and Law examination uses a Tennessee-specific 4th Edition.

They are not the same book and they are not the same examination.

The national book helps with the NASCLA Commercial General Building exam. The Tennessee edition supports the separate Tennessee Business and Law requirement.

Step 9: Prepare Your Open-Book References Correctly

PSI allows the NASCLA references to be organized, but its rules are strict.

Current rules allow:

• Highlighting.
• Underlining.
• Indexing.
• Permanent tabs.
• A silent, nonprinting, nonprogrammable calculator.

Current rules prohibit:

• Handwritten notes in the references.
• Loose additional papers.
• Attached unauthorized pages.
• Temporary tabs.
• Post-it notes.

For a prepared set, review the Tennessee NASCLA Commercial Building Contractor Highlighted & Tabbed Book Package.

Step 10: Focus on Procurement and Contracting Requirements

Procurement and Contracting Requirements is the largest exam category at 31 scored questions.

Study topics involving:

• Contracts.
• Project delivery.
• Estimating.
• Bidding.
• Scheduling.
• Project documentation.
• Change management.
• Risk.
• Project administration.
• Construction management.

A candidate can know concrete and framing very well and still struggle if the management side is ignored.

Step 11: Study General Requirements

General Requirements accounts for another 25 questions.

This category can pull from several references and construction responsibilities.

Review:

• Building-code requirements.
• Accessibility.
• Safety.
• Quality control.
• Project coordination.
• Construction documents.
• Building systems.
• Jobsite management.

Broad categories are where strong reference navigation becomes especially valuable.

Step 12: Master Site Construction

Site Construction contributes 15 scored questions.

Review:

• Excavation.
• Grading.
• Soils.
• Drainage.
• Site utilities.
• Stormwater controls.
• Trenching.
• Backfill.
• Site layout.
• Erosion and sediment control.

Pipe and Excavation Contracting and the EPA stormwater guide become particularly useful here.

Step 13: Do Not Neglect the Structural Topics

The test also reaches concrete, masonry, metals, wood systems, reinforcing steel, steel deck, trusses, precast concrete, and post-tensioning.

Review the basic construction principles for:

• Foundations.
• Structural concrete.
• Reinforcing steel.
• Precast concrete.
• Post-tensioning.
• Brick and block.
• Structural steel.
• Steel joists.
• Steel decking.
• Wood framing.
• Wood trusses.

A commercial general contractor coordinates all of these systems, so the examination expects broad knowledge rather than one specialty.

Step 14: Practice With the Books You Will Actually Use

Because the NASCLA reference library is large, simply reading the books from page one to page several thousand is not a great study plan.

1. Learn which book matches each exam category.
2. Highlight important tables and definitions.
3. Install permanent tabs where allowed.
4. Practice questions by category.
5. Look up every missed answer.
6. Track which book supplied the correct answer.
7. Repeat difficult lookups until they become fast.
8. Practice moving between several books.
9. Complete full timed simulations.

For structured preparation, review the Tennessee NASCLA Commercial General Building Contractor Online Exam Prep Course.

Step 15: What Happens If You Fail NASCLA?

NASCLA currently gives an approved candidate up to three attempts during the one-year eligibility period.

If you do not pass within those three attempts, you must wait until the original one-year eligibility period has expired before reapplying.

This is different from Tennessee's Prov retesting policy for its own state examinations.

Do not mix the two sets of retake rules.

The NASCLA trade exam follows NASCLA and PSI rules. Tennessee Business and Law follows Tennessee and Prov rules.

Step 16: Send Your NASCLA Transcript to Tennessee

After passing, your NASCLA result is stored in the National Examination Database, or NED.

You can then purchase a transcript and have it transmitted electronically to a participating licensing agency.

The current NASCLA transcript fee is $45 per state agency.

NASCLA exam results themselves do not expire, but a purchased transcript is currently available to the receiving agency for up to two years.

Tennessee then pairs the NASCLA result with your state contractor application.

Step 17: Pass Tennessee Contractor Business and Law

Passing NASCLA does not eliminate Tennessee's state Business and Law requirement for a normal new contractor applicant.

Tennessee Business and Law currently has:

• 50 questions.
• 73% passing score.
• $53 exam fee per attempt.
• Open-book format.

The June 15, 2026 Prov PDF bulletin lists two hours, while Prov's newer live Tennessee testing page displays 2.5 hours. Verify the time shown in your scheduling confirmation before test day.

Subjects include:

• Business Organization.
• Licensing.
• Estimating and Bidding.
• Contracts.
• Project Management.
• Risk Management.
• OSHA Safety.
• Financial Management.
• Labor Law.
• Tax Law.
• Lien Law.

The Tennessee-specific reference is the NASCLA Contractors Guide to Business, Law and Project Management, Tennessee, 4th Edition.

Prepared copies are available through the Tennessee NASCLA Business and Law Highlighted & Tabbed Book.

Step 18: Choose Your Tennessee Business Entity

Tennessee issues the contractor license to the approved business entity.

That may be:

• A sole proprietorship.
• A partnership.
• An LLC.
• A corporation.

LLCs, corporations, limited partnerships, and applicable foreign entities must satisfy Tennessee Secretary of State registration requirements.

Keep the legal business name consistent across your license application, financial documents, insurance, Secretary of State records, and surety bond if one is used.

Step 19: Select the Tennessee Qualifying Agent

Tennessee calls the person qualifying the company through an examination the Qualifying Agent, or QA.

The QA may generally be:

• An owner.
• An officer.
• A qualifying full-time employee.

A QA without the required ownership relationship may need Tennessee's Power of Attorney form.

The same person does not have to take both the trade exam and Business and Law in every situation. Tennessee allows different qualifying individuals for the examinations when its requirements are satisfied.

Step 20: Document Your Construction Experience

Passing NASCLA does not replace Tennessee's experience review.

Tennessee uses project and experience information when evaluating both the requested classification and monetary limit.

Board application guidance has traditionally indicated that approximately three years of construction experience is preferred.

Useful commercial general building experience can include:

• Commercial building construction.
• Project supervision.
• Estimating.
• Scheduling.
• Sitework.
• Concrete.
• Masonry.
• Structural steel.
• Wood construction.
• Roofing.
• Interior construction.
• Mechanical and electrical coordination.
• Safety management.
• Subcontractor management.

Your Tennessee experience sheet should identify real projects, project amounts, your responsibilities, and the actual work performed.

Step 21: Understand Tennessee's Monetary Limit

Every Tennessee contractor license has both a classification and a monetary limit.

Your classification determines the kind of construction work the business may perform.

Your monetary limit determines the maximum amount of an individual project or contract the business may generally undertake.

Under Tennessee's traditional financial method, the monetary limit is generally calculated at up to 10 times the lesser of working capital or net worth, together with experience and Board review.

For example, if a company has $50,000 of working capital and $200,000 of net worth, the smaller number is $50,000. That would generally provide the financial basis for a $500,000 monetary limit, subject to experience and Board approval.

Step 22: Meet Tennessee's Financial Requirements

Under Tennessee's traditional initial-license financial route:

• Requested limits of $3 million or less require a CPA-reviewed or audited financial statement.
• Requested limits above $3 million require a CPA-audited financial statement.
• The statement must generally be less than 12 months old.
• The statement must match the exact legal entity being licensed.

To qualify for an Unlimited monetary limit through the traditional financial route, current Tennessee guidance generally requires at least $300,000 in working capital and $300,000 in net worth, plus sufficient experience and Board approval.

Step 23: Consider Tennessee's 2026 Surety Bond Option

Beginning July 1, 2026, Tennessee allows a qualifying continuous Contractors' Surety Bond as an alternative to the required CPA financial statement.

The qualifying bond generally must equal at least 50% of the requested monetary limit.

• $500,000 requested limit: at least $250,000 bond.
• $1,000,000 requested limit: at least $500,000 bond.
• $1,500,000 requested limit: at least $750,000 bond.
• $3,000,000 requested limit: at least $1,500,000 bond.
• Unlimited request: current guidance uses a $1,500,000 minimum qualifying bond.

Review the Tennessee Contractor Forms and Financial Resources before choosing your financial route.

Step 24: Obtain General Liability Insurance

Tennessee requires general liability insurance based on the contractor's approved monetary limit.

• Up to $500,000 monetary limit: at least $100,000 coverage.
• $500,001 through $1,500,000: at least $500,000 coverage.
• $1,500,001 through Unlimited: at least $1,000,000 coverage.

Commercial project owners and general contracts may require considerably higher insurance limits than Tennessee's licensing minimum.

Step 25: Address Workers' Compensation

Contractor applicants must also provide workers' compensation insurance when required or qualifying exemption documentation.

Depending on the company structure, you may need:

• A workers' compensation insurance policy.
• Construction Services Provider exemption registration.
• Other documentation allowed by Tennessee.

Make sure the insurance arrangement matches the people actually working for the company.

Step 26: Get Your Letter of Reference

Tennessee requires a professional construction reference with the contractor application.

The reference may come from:

• A past client.
• A past employer.
• A code official who has inspected your work.

Tennessee states that the reference cannot come from a family member.

Choose someone who can actually explain your commercial construction experience instead of someone whose main qualification is remembering your birthday.

Step 27: Submit the Tennessee Contractor Application

Tennessee currently uses the CORE licensing system for initial contractor applications.

The current initial application fee is $250.

Your application may include:

• Business entity information.
• Requested Tennessee classification.
• Qualifying Agent information.
• NASCLA transcript or accepted trade-exam documentation.
• Tennessee Business and Law score.
• Construction experience and project history.
• Letter of Reference.
• Financial statement or qualifying surety bond.
• General liability insurance.
• Workers' compensation or exemption documentation.
• Secretary of State documentation when applicable.
• Contractor affidavits and disclosures.

Start with the official Tennessee contractor licensing instructions.

Passing NASCLA Does Not Mean You Are Licensed

This is worth repeating.

Your NASCLA score proves that you passed a recognized commercial general building trade examination.

It does not by itself establish:

• Your Tennessee contractor classification.
• Your monetary limit.
• Your business entity.
• Your insurance compliance.
• Your workers' compensation compliance.
• Your Tennessee Business and Law qualification.
• Your active Tennessee license.

Do not bid regulated Tennessee work until the Board has issued the license with the classification and monetary limit you need.

Why Contractors Choose NASCLA for Multi-State Growth

The biggest advantage of NASCLA is portability.

The examination is accepted by numerous participating contractor licensing agencies around the country.

After passing, you can use the National Examination Database to send transcripts to participating agencies as you apply for licensing.

Each state still has its own:

• Business and Law requirements.
• Experience requirements.
• Financial requirements.
• Insurance requirements.
• Application fees.
• Business registration rules.
• Classification system.

One trade exam can reduce duplicate testing. It does not reduce 50 state governments into one very large licensing office.

How Long Is the Tennessee Contractor License Valid?

Tennessee contractor licenses generally operate on a two-year renewal cycle.

The current contractor renewal fee is $200.

Renewal typically requires updated:

• Financial documentation or qualifying surety bond information.
• General liability insurance.
• Workers' compensation or exemption documentation.
• Secretary of State status when applicable.

Tennessee currently provides a 12-month contractor renewal grace period with a $20-per-month late fee.

After the license has been expired for 12 months or longer, a new application is required.

Review the Tennessee contractor renewal requirements before your expiration date.

Tennessee NASCLA Exam Prep Resources

A Simple Tennessee NASCLA Licensing Roadmap

1. Confirm the Tennessee building classification you actually want.
2. Confirm that Tennessee will accept NASCLA for the requested trade-exam requirement.
3. Apply for the NASCLA Commercial General Building examination.
4. Pay the current $65 NASCLA application fee.
5. Receive NASCLA approval and PSI scheduling instructions.
6. Obtain the current authorized reference books.
7. Prepare the references according to PSI rules.
8. Study procurement, general requirements, sitework, structures, codes, and building systems.
9. Practice full timed open-book examinations.
10. Pay the current $130 PSI examination fee.
11. Pass the 115-scored-question NASCLA exam with at least 81 correct answers.
12. Purchase and send your NASCLA transcript to Tennessee through NED.
13. Pass Tennessee Contractor Business and Law.
14. Choose the business entity that will hold the license.
15. Select the Tennessee Qualifying Agent.
16. Document relevant construction experience and project history.
17. Choose a financial qualification method.
18. Request a monetary limit supported by your finances and experience.
19. Obtain general liability insurance.
20. Address workers' compensation requirements.
21. Register the business with the Tennessee Secretary of State when required.
22. Submit the Tennessee contractor application and current $250 fee.
23. Wait for Board approval and license issuance.
24. Verify the classification, monetary limit, and active status before bidding.

Helpful Tennessee NASCLA Resources

Frequently Asked Questions

Key Takeaways

• NASCLA is an exam pathway, not a Tennessee contractor license. Tennessee still determines your classification, monetary limit, and final licensing approval.
• The current NASCLA Commercial General Building exam has 115 scored questions plus 10 unscored pretest questions. It allows 330 minutes, requires at least 81 correct scored answers, costs $130 through PSI, and is open book.
• NASCLA currently charges a separate $65 application fee and $45 per state transcript. Candidates receive up to three attempts during a one-year eligibility period.
• Tennessee Business and Law is still generally required. Tennessee's licensing requirements also include experience, a Qualifying Agent, financial qualification, insurance, business registration, and a $250 initial application.
• NASCLA can be especially useful for multi-state contractors. A passing result can be sent to participating licensing agencies instead of repeatedly taking separate commercial trade exams.

Final Thoughts Before You Start

The Tennessee NASCLA route can be an excellent option for a commercial contractor who wants a strong Tennessee license path and the flexibility to expand into other states later.

Just remember what NASCLA actually does.

It gives you a portable commercial general building trade examination result. It does not create a Tennessee license by itself.

Start by deciding exactly which Tennessee building classification fits your business. If your goal is commercial general building work, discuss that classification with the Tennessee Board and confirm how your NASCLA transcript will be applied.

Then prepare for the national examination seriously.

With 115 scored questions, 10 additional pretest questions, 5.5 hours, and a large reference library, NASCLA rewards organized contractors. Procurement and Contracting Requirements, General Requirements, and Site Construction make up most of the scored test, but the remaining questions reach concrete, masonry, metals, wood, roofing, mechanical systems, electrical systems, finishes, accessibility, safety, and other commercial-building topics.

The test is open book, but the book list is large. Knowing which reference to grab is just as important as knowing how to find a chapter once the book is open.

Highlighting, underlining, and permanent tabs can make your references much easier to use. Timed practice is even more important. Do not wait until exam day to discover that the answer is somewhere in Book Number 17.

After passing NASCLA, send the transcript to Tennessee through the National Examination Database and complete the separate Tennessee Business and Law requirement.

Then focus on the actual Tennessee license application. The Board will review your construction experience, Qualifying Agent, business entity, requested classification, monetary limit, finances, insurance, workers' compensation status, professional reference, and supporting records.

Pay special attention to the monetary limit. A commercial building classification tells you what type of work the company may perform. The monetary limit determines how large an individual contract the company may generally undertake. Passing a national exam does not automatically produce an Unlimited financial rating.

The NASCLA route really becomes valuable when you think beyond one exam. If you later apply in other participating states, your NASCLA result can reduce duplicate commercial trade testing. You will still deal with state applications, Business and Law exams, finances, insurance, and other requirements, but avoiding another massive trade exam can be a welcome change.

When you are ready to prepare, explore the Tennessee NASCLA Commercial General Contractor exam prep resources from 1 Exam Prep. A clear Tennessee licensing plan, organized NASCLA references, strong commercial construction knowledge, and plenty of timed practice can make the path much easier to manage.