70% Passing Score

115 Scored Questions

330-Minute Open-Book Exam

Accepted for NC Building Classification

Important North Carolina rule: NASCLA is an accepted examination credential, not a North Carolina contractor license. The North Carolina Licensing Board accepts the NASCLA Commercial General Building examination for the Building classification, but applicants must still complete the North Carolina licensing process and the required North Carolina Business and Law examination.

What Is the North Carolina NASCLA General Contractor Exam?

The NASCLA Accredited Examination for Commercial General Building Contractors is a standardized commercial construction examination accepted by participating contractor licensing agencies across the United States.

North Carolina accepts the NASCLA examination as an approved trade-exam path for the Building Contractor classification. That classification covers a broad range of commercial, industrial, institutional and residential building construction.

The NASCLA exam does not create a national contractor license. Passing it gives you an examination credential that can be sent through the NASCLA National Examination Database to participating licensing agencies.

NASCLA exam: satisfies an accepted trade-examination path for the North Carolina Building classification.

North Carolina license: is issued separately by the North Carolina Licensing Board for General Contractors after the application, qualifier, financial and other state requirements are satisfied.

Business and Law: North Carolina applicants using NASCLA must also complete the North Carolina Business and Law examination.

The North Carolina NASCLA Commercial General Building Contractor Online Exam Prep Course is designed to organize the large NASCLA syllabus and help candidates build faster open-book reference skills.

North Carolina NASCLA General Contractor Licensing Path

The NASCLA examination comes first. North Carolina then applies its own licensing, Business and Law, qualifier and financial requirements.

Stage Requirement What to Do
Choose Building Classification North Carolina general contractor classification Confirm that the Building classification matches the work your business intends to perform
Apply to NASCLA NASCLA examination approval Apply through the NASCLA National Examination Database before scheduling with PSI
NASCLA Exam 115 scored questions + 10 unscored pretest questions Earn at least 81 correct scored answers within 330 minutes
NASCLA Transcript Send exam credential to North Carolina Use the NASCLA National Examination Database to provide the required transcript
North Carolina Application NCLBGC license application Apply through the North Carolina Licensing Board for General Contractors and identify the qualifier
Business and Law Exam 40 questions • 90 minutes • 70% Receive North Carolina eligibility and pass the open-book state Business and Law examination
Financial Requirement Depends on license limitation Meet the financial requirement for Limited, Intermediate or Unlimited licensure
License Approval Board approval Complete all remaining licensing requirements before contracting under the license

Research Authority and Verification Snapshot

Current NASCLA, PSI, North Carolina Board and 1 Exam Prep information was checked separately.

Verified Point Authority Current Result
NASCLA bulletin PSI / NASCLA Current bulletin updated July 7, 2026
Exam format Current PSI/NASCLA bulletin 115 scored questions, 10 unscored pretest questions, 330 minutes and 81 correct required
North Carolina acceptance North Carolina Licensing Board for General Contractors NASCLA accepted for the Building classification
NC Business and Law North Carolina Board / PSI 40 questions, 90 minutes, 70% passing and open book
License threshold NCLBGC / G.S. 87-1 A North Carolina general contractor license is required for projects valued at $40,000 or more
License limitations NCLBGC Limited, Intermediate and Unlimited
1 Exam Prep support Direct 1 Exam Prep listings Online course, complete book sets, highlighted and tabbed packages, rental packages and licensing support

North Carolina NASCLA General Contractor Exam Breakdown

The current NASCLA Commercial General Building examination has 115 scored questions. You need at least 81 correct scored answers to reach the 70 percent passing requirement.

The exam also includes 10 additional unscored pretest questions. Those questions are mixed into the examination and are not identified, so candidates may see 125 total questions even though only 115 are scored.

You receive 330 minutes, or five hours and thirty minutes, for the entire examination. With 125 questions presented, that works out to roughly two minutes and 38 seconds per question.

The largest subject is Procurement and Contracting Requirements with 31 scored questions. General Requirements contains 25, and Site Construction contains 15. Those three areas alone account for 71 of the 115 scored questions.

Exam NASCLA Accredited Examination for Commercial General Building Contractors
North Carolina Classification Building Contractor
North Carolina Authority North Carolina Licensing Board for General Contractors
Testing Provider PSI
Scored Questions 115
Pretest Questions 10 unscored questions
Possible Questions Presented 125 total
Passing Score 81 correct scored answers / 70%
Time Allowed 330 minutes / 5 hours 30 minutes
Format Computer-based and open book
Largest Topic Procurement and Contracting Requirements • 31 questions
NASCLA Eligibility One year after application approval with a maximum of three attempts during that eligibility period
NC Business & Law 40 questions • 90 minutes • 70% passing

How to Study for the North Carolina NASCLA General Contractor Exam

NASCLA is broad. A contractor may know concrete extremely well and still run into questions about accessibility, steel joists, stormwater, gypsum, OSHA, roofing or project management.

Start with Procurement and Contracting. It is the largest current category with 31 scored questions.

Give General Requirements major study time. This section adds another 25 questions.

Study Site Construction carefully. Fifteen questions cover another major part of the test.

Practice with the books. The test is open book, but a large reference library is only useful when you already know which book belongs to the question.

Estimating, Plans and Construction Calculation Strategy

NASCLA candidates should be ready for practical construction calculations involving quantities, areas, volumes, concrete, excavation, materials, project costs and plans.

PLANS COSTS SITE CODE plans • quantities • estimating • site work • code lookup

Simplified NASCLA general contractor exam prep illustration for plans, estimating, site construction and code navigation.

Use a simple process. Identify what the problem asks for, write down the dimensions or quantities, select the correct formula or table and then confirm the result against the plans or reference material.

  • Concrete: volume, reinforcing, slabs, footings and structural requirements
  • Site Work: excavation, grading, drainage, stormwater and soil-related work
  • Carpentry: framing, trusses, dimensions and wood construction
  • Roofing: areas, materials, thermal and moisture protection
  • Project Management: scheduling, procurement, contracts, documentation and change management
  • Blueprints: practice reading dimensions, notes, details and construction relationships

Your North Carolina NASCLA General Contractor Licensing Roadmap

Complete the NASCLA credential first, then finish the North Carolina-specific licensing requirements.

1

Choose the North Carolina Building classification

Make sure the Building classification matches the construction work your company intends to perform.

2

Apply to NASCLA before the North Carolina license application

North Carolina directs candidates choosing the NASCLA pathway to complete the NASCLA examination process before applying for the North Carolina general contractor license.

3

Prepare the full reference library

Organize the NASCLA commercial construction references and practice identifying which book controls each subject.

4

Pass the NASCLA examination

Earn at least 81 correct answers from the 115 scored questions within the 330-minute examination window.

5

Send your NASCLA transcript

Use the National Examination Database to send your examination credential to the North Carolina Licensing Board.

6

Submit the North Carolina license application

Select the Building classification and Limited, Intermediate or Unlimited limitation, then satisfy the Board's application and financial requirements.

7

Pass North Carolina Business and Law

Prepare for the 40-question, 90-minute state examination covering licensing, liens, bonds, One Call, subcontractor payment and erosion control.

NASCLA Commercial General Building Exam Topic Weighting

These counts follow the current July 2026 PSI/NASCLA content outline. Bar lengths compare each category with the largest 31-question Procurement and Contracting section.

General Requirements 25 questions • 21.7%

Site Construction 15 questions • 13.0%

Concrete 6 questions • 5.2%

Masonry 4 questions • 3.5%

Metals 6 questions • 5.2%

Wood 5 questions • 4.3%

Thermal and Moisture Protection 5 questions • 4.3%

Doors, Windows and Glazing 4 questions • 3.5%

Finishes 5 questions • 4.3%

Mechanical and Plumbing Systems 6 questions • 5.2%

Electrical Systems 3 questions • 2.6%

Procurement and Contracting Requirements 31 questions • 27.0%

High-value study fact: Procurement and Contracting, General Requirements and Site Construction combine for 71 of the 115 scored questions. That is about 61.7 percent of the scored exam.

Current NASCLA Commercial General Building Reference Library

The current July 2026 bulletin uses a large open-book reference library. Always compare your exact editions with the live PSI/NASCLA bulletin before testing.

Reference Primary Study Use Current Edition Information
International Building Code Commercial building requirements, occupancy, construction type, egress and building systems 2021 or 2024
NASCLA Contractors Guide to Business, Law and Project Management Procurement, contracting and project-management concepts Basic 14th Edition
Construction Jobsite Management Field management, documentation, supervision and site operations 4th Edition 2017 or 5th Edition 2024
Construction Project Management Planning, schedules, costs, contracts and project administration 4th Edition 2014 or 5th Edition 2022
29 CFR Part 1926 OSHA Construction safety 1926-2023 with current amendments or PSI OSHA Excerpts 2025
ICC A117.1 Accessible and usable buildings and facilities 2017
ACI 318 Structural concrete ACI 318-14 or ACI 318-19 (2022)
Contractor's Guide to Quality Concrete Construction Concrete construction practices 4th Edition, 2018
Placing Reinforcing Bars Reinforcing steel placement 10th Edition, 2019 or later printing
Modern Masonry Brick, block and stone construction 9th Edition, 2020
Carpentry and Building Construction Wood construction, framing and carpentry 2016
BCSI Wood Truss Guide Wood truss handling, restraint and bracing 2018 updated March 2020 or 2025
Roofing Construction and Estimating Roofing systems and estimating 1995, reprinted 2022
Gypsum Construction Handbook Gypsum systems and commercial finishes 7th Edition, 2014
Mechanical and Electrical Systems for Construction Managers Building mechanical and electrical systems 4th Edition, 2024
Principles and Practices of Commercial Construction Broad commercial construction methods 11th Edition, 2024
Pipe and Excavation Contracting Excavation, utilities and site construction 2011
Steel Deck / Steel Joist References Metal deck, joists and erection SDI 2016 and Technical Digest No. 9, 3rd Edition
Post-Tensioning Level 1 Field Fundamentals Unbonded post-tensioning field work 3rd Edition, 2003
Developing Your Stormwater Pollution Prevention Plan Construction-site stormwater management EPA 2007
ANSI/EIMA 99-A EIFS and EIFS with drainage 2017

Blueprint note: PSI currently provides a physical diagram and blueprint packet at the testing center. Your other approved references are not supplied by the testing center, so bring the books required under the current bulletin.

How to Prepare for the Open-Book NASCLA Exam

Build these exam-prep habits

  • Practice with the current approved reference library
  • Learn each book's table of contents and index
  • Use permanent tabs where allowed
  • Highlight and underline before test day
  • Practice switching quickly between construction subjects
  • Use timed 115-question practice sessions
  • Train with a silent non-programmable calculator

Avoid these exam-prep mistakes

  • Trying to look up every single answer
  • Writing notes inside exam references
  • Using temporary Post-it tabs
  • Adding loose or attached papers to books
  • Ignoring project management and contracting
  • Studying only your strongest construction trade
  • Using outdated code editions without checking PSI

Current PSI book rule: references may be highlighted, underlined and indexed. They must otherwise remain unmarked. Permanent tabs are allowed, but temporary tabs such as Post-it notes are not allowed.

NASCLA Exam vs North Carolina General Contractor License

Passing the NASCLA examination and receiving a North Carolina contractor license are two different things.

NASCLA provides an accepted commercial construction examination credential. North Carolina decides whether an applicant meets the requirements for the state's Building Contractor license.

NASCLA: tests commercial general building knowledge and can replace the state-specific trade examination for an accepted classification.

North Carolina: issues the contractor license after reviewing the application, qualifier, financial requirements, Business and Law examination and other licensing requirements.

Project threshold: North Carolina generally requires a licensed general contractor when the project cost is $40,000 or more.

North Carolina License Limitation Comparison

The Building classification controls the type of work. The limitation controls the maximum value of a single project.

Limitation Project Limit Current Financial Requirement
Limited Up to $750,000 on a single project At least $17,000 working capital or $80,000 net worth, or qualifying $175,000 surety bond
Intermediate Up to $1,500,000 on a single project At least $75,000 working capital, or qualifying $500,000 surety bond
Unlimited No restriction on single-project value At least $150,000 working capital, or qualifying $1,000,000 surety bond

North Carolina NASCLA General Contractor License Requirements

NASCLA Examination

Commercial General Building Trade Credential
  • Apply through NASCLA
  • Receive NASCLA approval
  • 115 scored questions
  • 10 additional pretest questions
  • 330 minutes
  • 81 correct required
  • Open-book examination

Choose a Limitation

Limited • Intermediate • Unlimited
  • Select appropriate project limit
  • Meet working-capital or net-worth requirement
  • Use qualifying surety bond where applicable
  • Complete Board review
  • Receive license before contracting

Six-Week North Carolina NASCLA General Contractor Exam Prep Plan

Break the giant NASCLA reference library into manageable construction subjects instead of trying to learn everything on one heroic Saturday.

Week 1

General Requirements

  • Construction management
  • Jobsite management
  • OSHA safety
  • Accessibility
  • Building-code navigation
Week 2

Procurement and Contracting

  • Contracts
  • Project administration
  • Procurement
  • Scheduling
  • Change management
Week 3

Site Construction and Concrete

  • Excavation
  • Stormwater
  • Site work
  • ACI concrete
  • Reinforcing and post-tensioning
Week 4

Masonry, Metals and Wood

  • Masonry systems
  • Steel deck
  • Steel joists
  • Carpentry
  • Wood truss bracing
Week 5

Envelope and Building Systems

  • Roofing
  • Thermal protection
  • Moisture protection
  • Finishes
  • Mechanical, plumbing and electrical systems
Week 6

Full NASCLA Simulation

  • 125-question total simulation
  • 330-minute timer
  • Reference-navigation drills
  • Review missed questions
  • Begin North Carolina Business and Law review

How Hard Is the North Carolina NASCLA General Contractor Exam?

The NASCLA exam is challenging because it covers a huge range of commercial construction knowledge. It is not just a building-code test and it is not just a business exam.

A candidate can move from concrete to accessibility, then to steel joists, then OSHA, then contracts, then mechanical systems. The books on your desk may start looking like a small library branch.

The biggest scoring opportunities are Procurement and Contracting, General Requirements and Site Construction. Strong candidates study those heavily while still protecting points in the smaller trade sections.

Reference speed matters just as much as reference ownership. Owning twenty books is impressive. Finding the correct answer in one of them before your coffee gets cold is more useful.

NASCLA General Contractor Exam Day Checklist

Do this

  • Confirm your current PSI appointment
  • Arrive early with valid identification
  • Bring all approved references you intend to use
  • Use permanent tabs only
  • Bring an approved silent non-programmable calculator
  • Expect the blueprint packet to be supplied onsite
  • Protect time for all 125 presented questions

Do not do this

  • Write notes inside your exam books
  • Bring loose papers inside references
  • Use removable Post-it tabs
  • Assume every question needs a book lookup
  • Spend too long on one obscure reference search
  • Ignore the 10 unscored pretest questions
  • Forget that North Carolina Business and Law is still required

North Carolina NASCLA General Contractor Exam Prep Options

NASCLA Online Exam Prep Course

Structured Commercial Construction Review
  • Commercial general building study
  • Reference-navigation training
  • Project-management review
  • Construction trade review
  • Practice-oriented preparation
  • Open-book strategy
View NASCLA Online Course

Ultimate NASCLA Rental Package

Books + Course + Application Support
  • Highlighted and tabbed rental library
  • NASCLA course access
  • North Carolina-specific references
  • Application service
  • Open-book study support
  • Licensing preparation
View Ultimate Rental Package

North Carolina Business and Law: NASCLA applicants should also prepare separately for the state Business and Law examination. The North Carolina Business and Law Contractor Exam Complete Pass Package focuses on the state-specific portion.

North Carolina NASCLA Commercial General Building Contractor Online Exam Prep Course

NASCLA Can Satisfy the North Carolina Building Trade Exam Path

The NASCLA credential gives North Carolina Building Contractor candidates an alternative to the state-specific Building trade exam.

• 115 scored questions

• 10 additional unscored pretest questions

• 330 minutes

• 81 correct scored answers required

• Open-book commercial construction examination

• Accepted by North Carolina for the Building classification

• North Carolina Business and Law is still required

• North Carolina licensing, qualifier and financial requirements still apply

Passing NASCLA gives you an exam credential, not an automatic license. Finish the North Carolina licensing process before contracting under the Building classification.

North Carolina NASCLA General Contractor Exam Prep FAQ

NASCLA Examination

Yes. The North Carolina Licensing Board for General Contractors accepts the NASCLA Accredited Examination for Commercial General Building Contractors for the Building classification.
The current July 2026 bulletin lists 115 scored questions plus 10 additional unscored pretest questions.
Yes. The exam contains 115 scored items plus 10 unscored pretest items. The experimental questions are mixed into the examination and are not identified to you.
Candidates currently receive 330 minutes, or five hours and thirty minutes.
You need 81 correct answers out of the 115 scored questions, which equals a 70 percent passing score.
Yes. The current PSI/NASCLA bulletin lists the exam as open book using approved references.
Procurement and Contracting Requirements is currently the largest category with 31 scored questions.
Procurement and Contracting Requirements has 31 questions, General Requirements has 25 and Site Construction has 15. Together they contain 71 of the 115 scored questions.

Open-Book Rules

Yes. Current PSI rules allow approved references to be highlighted and underlined before the examination.
Yes. Permanent tabs are allowed under the current NASCLA testing rules.
No. Temporary tabs such as Post-it notes are not allowed and must be removed before the examination begins.
No. References must otherwise remain unmarked and may not contain handwritten notes.
No. The current bulletin prohibits additional loose or attached papers inside examination references.
Yes. The current NASCLA bulletin states that a physical diagram and blueprint packet is handed out onsite at the testing center.
Yes. PSI currently permits a silent, non-printing, non-programmable calculator.

North Carolina Licensing

No. NASCLA is an examination credential. You still have to apply to the North Carolina Licensing Board for General Contractors and satisfy the state's licensing requirements.
The North Carolina Board currently directs candidates choosing the NASCLA route to complete the NASCLA examination before applying for the North Carolina general contractor license.
Yes. North Carolina application guidance requires applicants using the NASCLA examination to pass the North Carolina Business and Law examination.
The current PSI bulletin lists 40 questions, a 90-minute time limit and a 70 percent passing score.
The current outline includes Licensing, Liens and Bonds, One Call, Erosion and Sedimentation Control and Subcontractor Pay Requirements.
North Carolina generally requires a state general contractor license when the cost of a construction undertaking is $40,000 or more.
A current Limited license allows a general contractor to undertake a single project valued up to $750,000.
A current Intermediate license allows a general contractor to undertake a single project valued up to $1,500,000.
No. The Unlimited license is not restricted by the value of an individual project.
Yes. For license renewal, the Board currently requires eight hours of continuing education from at least one qualifier for licenses holding the Building, Residential or applicable Unclassified classification.

1 Exam Prep

Yes. 1 Exam Prep offers a North Carolina NASCLA Commercial General Building Contractor Online Exam Prep Course focused on structured study, commercial construction review, open-book strategy and reference navigation.
Yes. Options include complete book sets, highlighted and tabbed packages, rental packages and larger exam-prep packages.

Watch: NASCLA Examination Commercial General Building Contractor

Watch this related 1 Exam Prep NASCLA video for an overview of commercial general building contractor exam preparation, reference books, open-book study strategy and the NASCLA examination path.

North Carolina exam prep note: this 1 Exam Prep video covers the NASCLA Commercial General Building Contractor examination generally. For current North Carolina preparation, use the July 2026 PSI/NASCLA bulletin for the trade examination and the current North Carolina PSI bulletin for the separate Business and Law requirement.

Ready for North Carolina NASCLA General Contractor Exam Prep?

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North Carolina NASCLA Exam Prep