- What Is HI-GBC?
- Who Administers the Exam and Why It Exists
- Exam Format and Question Style
- The Eight HI-GBC Domains
- Registration, Fees, and Timeline
- Eligibility Requirements
- Who Hires HI-GBC Licensed Contractors
- Renewal and Ongoing Costs
- How to Prepare for the Specific Content You'll See
- Frequently Asked Questions
- HI-GBC is the PSI-administered B - General Building Contractor trade exam for Hawaii's Contractors License Board.
- The trade exam has 80 scored questions, a 240-minute limit, and requires 75% (60 correct) to pass.
- Total exam charges run $165: $85 for the trade exam plus $80 for the separate Business and Law exam.
- Concrete and Associated Trades tie as the largest domains on the outline, so plan study time accordingly.
What Is HI-GBC?
HI-GBC refers to the Hawaii General Building Contractor (B) Trade Exam - the trade-specific licensing test that the Hawaii Contractors License Board, under the Department of Commerce and Consumer Affairs' Professional and Vocational Licensing Division, requires of applicants pursuing a B - General Building contractor license. The exam itself is written and administered through PSI, the third-party testing vendor, and "HI-GBC" functions as the site identifier for this specific trade blueprint.
If you're new to Hawaii's licensing process, it helps to think of HI-GBC as one of two separate hurdles: the trade exam covering building-construction knowledge, and a distinct Business and Law examination covering the administrative side of running a contracting business. Both must be passed, but they are scored, scheduled, and billed separately.
Who Administers the Exam and Why It Exists
The Hawaii Contractors License Board sets the licensing requirements, and PSI delivers the actual test at computer-based test centers or via remote proctoring. This exam exists because the Board needs an objective way to confirm that anyone applying for a B - General Building license has the practical, field-level knowledge to safely run construction projects - not just the paperwork to apply.
Because PSI publishes and updates the bulletin that governs content and procedure, the specifics can shift year to year. The current trade exam bulletin is dated January 20, 2026, and the separate Business and Law outline was updated March 30, 2026 - a reminder that candidates should always confirm they're studying the current version rather than an outdated PDF. For a deeper breakdown of what changed and how it affects your prep, see the HI-GBC Study Guide 2026.
Exam Format and Question Style
HI-GBC is a closed-book, computer-based, multiple-choice exam. "Closed book" is not a minor detail - the 2018 IBC and other listed trade references are meant only for study; nothing is admitted into the testing room or available on-screen during the exam itself. Everything you need has to already be in your head or derivable from the calculator PSI provides.
- Scored questions: 80 questions count toward your result.
- Time allowed: 240 minutes total.
- Passing score: 75%, which equals 60 correct answers out of 80.
- Unscored items: Up to 10 experimental questions may appear, but PSI explicitly states that time spent on these does not count against your exam time.
- Calculator: PSI offers an on-screen calculator, or you may bring an approved silent, nonprinting, nonprogrammable calculator.
Because you can't distinguish scored questions from the unscored experimental ones, the practical strategy is to treat every question with equal seriousness rather than trying to guess which ones "don't count." For a full breakdown of exactly what 75% means in practice and how the math works, see HI-GBC Passing Score 2026: Exactly What You Need to Pass.
Key Takeaway
The 10 possible experimental questions don't cost you time, but since you can't identify them during the exam, budget your 240 minutes as if all 90 possible items matter.
The Eight HI-GBC Domains
The trade exam blueprint is organized into eight content areas. Two of them - Concrete and Associated Trades - tie for the largest share of the outline, which should shape how you allocate study hours.
Domain 1: Plan Reading and Estimating
Covers interpreting construction drawings, specifications, and quantity takeoffs that a General Building contractor relies on to bid and supervise work.
- Reading plan sets and specs accurately under time pressure
Domain 2: Sitework and Foundations
Covers site preparation, excavation, and foundation systems that precede structural framing.
- Sequencing sitework correctly relative to foundation placement
Domain 3: Concrete
One of the two largest domains on the outline. The outline specifically restricts this topic to C-31a work, so generic concrete knowledge isn't enough - you need to know the scope boundaries of C-31a specifically.
- C-31a scope and where it stops and other trades begin
Domain 4: Carpentry
Covers rough and finish carpentry principles relevant to building construction supervision.
- Framing methods and sequencing tied to structural integrity
Domain 5: Associated Trades
The other largest domain, tied with Concrete. It bundles interior and exterior finishes plus windows and doors - a wide net of subtopics that deserves proportionally more study time.
- Interior/exterior finish materials and installation basics
- Window and door installation and flashing details
Domain 6: Roofing
Restricted specifically to C-42a and C-42b scopes of work, similar to how Concrete is narrowed to C-31a. Don't over-study roofing systems outside those classifications.
- C-42a/C-42b scope limits and typical failure points
Domain 7: Safety OSHA
Covers job-site safety obligations a General Building contractor is responsible for enforcing.
- Supervisory safety responsibilities on active job sites
Domain 8: Thermal and Moisture Protection
Covers insulation, waterproofing, and moisture-control systems that protect a building envelope.
- Common moisture intrusion points and correct barrier placement
Because Concrete and Associated Trades carry the most weight, candidates who shortchange those two domains in favor of lighter ones often leave points on the table. For a question-count-level breakdown of how the 80 scored items are believed to distribute across all eight areas, see HI-GBC Exam Domains 2026: Complete Guide to All 8 Content Areas.
Registration, Fees, and Timeline
HI-GBC registration isn't a simple "pay and schedule" process - it runs through the Board first. You need Board approval before you're even eligible to register for testing, and once approved, you must pass all required exams within six months.
| Item | Cost |
|---|---|
| B - General Building trade exam (HI-GBC) | $85 |
| Business and Law exam (new applicants) | $80 |
| Total examination charges | $165 |
| Sole-proprietor or RME application fee | $50 (separate from exam/license fees) |
Note that the $50 application fee is distinct from examination charges and from any license fee - it's easy to underestimate the total cost of getting licensed if you only budget for the exam itself. A full accounting of every fee a candidate is likely to encounter is covered in HI-GBC Certification Cost 2026: Complete Pricing Breakdown.
Eligibility Requirements
Before you can even sit for HI-GBC, you need to meet baseline eligibility criteria set by the Board:
- Be at least 18 years old
- Generally document four years of supervisory experience within the preceding ten years
- Submit at least three notarized experience certificates
- Provide a chronological project list supporting that experience
- Qualifying technical training may earn up to one year of experience credit toward the four-year requirement
These requirements exist independent of the exam content itself, but they determine whether you're even permitted to register. A detailed walkthrough of documentation requirements, notarization specifics, and how technical training credit is evaluated is available in HI-GBC Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Who Hires HI-GBC Licensed Contractors
A B - General Building license opens the door to supervising and contracting general building construction work in Hawaii - new construction, renovations, and projects spanning multiple trades that fall under a general building scope rather than a single specialty license. Because the exam blueprint weights Concrete and Associated Trades most heavily, employers and clients typically expect a licensed General Building contractor to be comfortable coordinating concrete work, finish trades, window/door installation, carpentry, roofing oversight within C-42a/C-42b limits, and moisture protection across a single project.
Whether you're aiming to run your own sole-proprietor operation or serve as a Responsible Managing Employee for an existing entity, the license itself is the credential that qualifies you to pull permits and supervise licensed work. If you're weighing whether pursuing this license fits your career plans, Is the HI-GBC Certification Worth It? Complete ROI Analysis 2026 walks through the tradeoffs, and HI-GBC Jobs looks at where licensed General Building contractors typically find work.
Renewal and Ongoing Costs
Passing the exam isn't the end of the financial commitment. Hawaii General Building Contractor licenses renew on September 30 of even-numbered years, and renewal fees for 2026 are structured by license category:
| License Type | 2026 Active Renewal Fee |
|---|---|
| Entity / Sole Proprietor | $338 |
| Responsible Managing Employee (RME) | $208 |
Renewal also carries applicable insurance requirements and, for entities and sole proprietors, tax-clearance requirements. These aren't optional add-ons - they're conditions of keeping the license active, so budgeting for them alongside the initial $165 in exam fees and $50 application fee gives a more complete cost picture.
How to Prepare for the Specific Content You'll See
Generic study advice won't help much if it's not mapped to HI-GBC's actual weighting. Because Concrete (C-31a scope) and Associated Trades tie as the largest domains, those two deserve the largest blocks of dedicated review time - not an equal eighth of your schedule split evenly across all eight domains.
Concrete and Associated Trades
- Drill C-31a scope boundaries and typical failure scenarios
- Work through interior/exterior finishes and window/door installation questions
Plan Reading, Sitework, Carpentry, Roofing
- Practice takeoffs and spec interpretation timed against the 240-minute format
- Narrow roofing review specifically to C-42a/C-42b scope
Safety OSHA and Thermal/Moisture Protection
- Review supervisory safety obligations and envelope moisture control
- Run full-length timed practice sets under closed-book conditions
Because the exam is strictly closed book, memorization matters more here than in open-reference tests - you won't have the 2018 IBC or other trade references in front of you during the exam, only your own recall and the provided calculator. If you want a condensed, at-a-glance reference to reinforce that memorization in the final stretch, HI-GBC Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for that purpose. And if you're still gauging how challenging the format itself is relative to your current knowledge, How Hard Is the HI-GBC Exam? Complete Difficulty Guide 2026 breaks that down directly.
Running full-length, timed practice exams on our practice test platform is one of the most direct ways to simulate the 240-minute, 80-question closed-book format before test day. Repeated exposure to that exact structure - not just reviewing notes - is what builds the pacing instinct you need when unscored experimental questions are mixed in unpredictably.
Frequently Asked Questions
No. HI-GBC is the B - General Building Contractor trade exam ($85). The Business and Law exam is a separate test with its own $80 fee for new applicants, bringing total examination charges to $165.
There are 80 scored questions with 240 minutes allowed. Up to 10 additional unscored experimental questions may also appear, but time spent on those does not count against your 240 minutes.
No. HI-GBC is closed book. Listed trade references, including the 2018 IBC, are for study purposes only and are not permitted during the actual exam.
You need 75%, which equals 60 correct answers out of the 80 scored questions. See the HI-GBC Passing Score 2026 guide for a full breakdown.
You must pass all required exams within six months of receiving Board approval, so scheduling your trade and Business and Law exams promptly matters.