- HI-GBC is the Hawaii General Building Contractor (B) Trade Exam, administered via PSI for the Hawaii Contractors License Board.
- The trade exam has 80 scored questions, a 240-minute limit, and requires 75% (60 correct) to pass.
- Trade exam costs $85; the separate Business and Law exam adds $80, totaling $165 in exam fees.
- Concrete and Associated Trades tie for the largest share of tested content across the 8 domains.
What Is A HI-GBC, Exactly?
HI-GBC stands for the Hawaii General Building Contractor (B) Trade Exam - the trade-specific licensing test that the Hawaii Contractors License Board requires for anyone seeking a "B" general building contractor license in the state. It is not a certificate you print for a resume line item; it is a state licensing checkpoint administered on behalf of the Board's Department of Commerce and Consumer Affairs, Professional and Vocational Licensing Division. If you've searched around and found other unrelated things sharing the same three letters, set them aside - on this site, HI-GBC refers exclusively to this Hawaii trade exam.
The exam confirms that a candidate has the practical, field-tested knowledge to supervise general building construction projects safely and competently. For a deeper breakdown of the acronym itself, see HI-GBC Meaning and What Does HI-GBC Stand For?.
Who Administers the HI-GBC and Why It Matters
PSI is the testing vendor that delivers the B - General Building Contractor trade examination on behalf of the Hawaii Contractors License Board. This matters practically: PSI's bulletin (dated January 20, 2026) governs the rules you sit under on test day - timing, calculator policy, and what references are or are not permitted. The Business and Law examination has its own separate outline, last updated March 30, 2026, and is scheduled and scored independently from the trade exam.
Because two different bodies of content sit behind two separate exams, candidates sometimes conflate the fees, question counts, or timing of one with the other. Keep them mentally separate: the trade exam tests construction knowledge across eight domains; the Business and Law exam tests different subject matter entirely and is not covered by the domain breakdown discussed below.
Exam Format: Questions, Time, and Scoring
The HI-GBC trade exam blueprint is fixed and well-documented, which makes it easier to plan around than exams with vague scoring rules.
- 80 scored questions, multiple-choice, delivered by computer at a test center or through remote proctoring.
- 240 minutes allotted for the scored portion.
- 75% required to pass - that's 60 correct answers out of 80.
- Up to 10 unscored experimental questions may be mixed in. PSI states explicitly that time spent on these does not count against your 240-minute clock, so an unusually strange or out-of-scope question is not necessarily a bad sign.
- The exam is closed book. The 2018 IBC and other listed trade references are study materials only - none of them are permitted in the testing room.
- PSI provides an on-screen calculator, or you may bring an approved silent, nonprinting, nonprogrammable calculator.
For the exact score threshold and how the math works, see HI-GBC Passing Score 2026: Exactly What You Need to Pass. If you're trying to gauge overall difficulty before committing study time, How Hard Is the HI-GBC Exam? Complete Difficulty Guide 2026 walks through what makes the format challenging beyond just the pass threshold.
Key Takeaway
Because unscored experimental items don't cost you exam time, don't panic-pace yourself if a question feels oddly worded - just answer your best and move on within your normal per-question rhythm.
The 8 HI-GBC Content Domains
The trade exam blueprint spreads its 80 scored questions across eight defined content domains. Understanding how these domains are weighted - and, more importantly, what falls inside versus outside their scope - is the single most useful thing a candidate can do before opening a study guide.
Domain 1: Plan Reading and Estimating
Interpreting construction drawings, specifications, and quantity takeoffs as they'd appear on an actual jobsite package.
- Reading symbols, schedules, and dimension callouts correctly under time pressure
Domain 2: Sitework and Foundations
Site preparation, excavation, footings, and foundation systems that precede vertical construction.
- Soil bearing, grading, and foundation type selection basics
Domain 3: Concrete
One of the two largest domains on the exam. Notably, the outline restricts this topic specifically to C-31a work - not general concrete knowledge at large.
- Mixing, placement, curing, and formwork scoped to C-31a
Domain 4: Carpentry
Framing systems, structural wood elements, and general carpentry practices used in building construction.
- Rough framing sequencing and structural fastening
Domain 5: Associated Trades
The other domain tied for largest weight on the exam. Covers interior and exterior finishes plus windows and doors.
- Finish installation sequencing and coordination with other trades
Domain 6: Roofing
Scoped narrowly to C-42a and C-42b work rather than roofing knowledge in general.
- Roofing systems and materials specific to C-42a/C-42b
Domain 7: Safety OSHA
Jobsite safety practices and OSHA-aligned procedures relevant to general building supervision.
- Hazard recognition and standard jobsite safety protocol
Domain 8: Thermal and Moisture Protection
Building envelope concerns including insulation, waterproofing, and moisture barrier systems.
- Envelope detailing where moisture intrusion risk is highest
Because Concrete and Associated Trades tie for the largest share of scored content, candidates who shortchange either domain are taking on outsized risk relative to the other six. For a full walkthrough of how each domain is weighted and tested, see HI-GBC Exam Domains 2026: Complete Guide to All 8 Content Areas.
Registration, Fees, and Eligibility Mechanics
The path to sitting for the HI-GBC trade exam runs through the Hawaii Contractors License Board, not directly through PSI. Understanding the order of operations avoids wasted time.
- Board approval first: You must obtain Board approval before registering for any exam.
- Six-month clock: Once approved, you must pass all required exams - trade and Business and Law - within six months of approval.
- Age and experience: Applicants must be at least 18 and generally must document four years of supervisory experience within the preceding ten years.
- Documentation: At least three notarized experience certificates plus a chronological project list are required.
- Training credit: Qualifying technical training may earn up to one year of credit toward the experience requirement.
See HI-GBC Requirements 2026: Eligibility, Prerequisites & How to Qualify for the full eligibility breakdown, and HI-GBC Exam Dates 2026: Testing Windows, Deadlines & Scheduling for how the six-month window interacts with scheduling.
| Fee Item | Amount |
|---|---|
| Trade exam (B - General Building Contractor) | $85 |
| Business and Law exam (new applicants) | $80 |
| Total examination charges | $165 |
| Sole-proprietor / RME application fee | $50 (separate from exam/license fees) |
| 2026 active entity/sole-proprietor renewal | $338 |
| 2026 active RME renewal | $208 |
Licenses renew on September 30 of even-numbered years, and 2026 renewal amounts carry applicable insurance and entity/sole-proprietor tax-clearance requirements. For the complete cost picture beyond just exam fees, see HI-GBC Certification Cost 2026: Complete Pricing Breakdown.
Who Actually Needs a HI-GBC Credential
The HI-GBC trade exam is aimed at people pursuing licensure as a general building contractor in Hawaii - typically construction supervisors, project managers moving into a licensed role, or experienced tradespeople stepping up to run their own contracting business. This includes both sole proprietors and those seeking approval as a responsible managing employee (RME), each with their own $50 application fee track separate from exam and license charges.
If you're weighing whether pursuing this license makes sense for your career stage, Is the HI-GBC Certification Worth It? Complete ROI Analysis 2026 and HI-GBC Salary Guide 2026: Complete Earnings Analysis address the bigger-picture return, while HI-GBC Jobs covers the kinds of roles this license typically opens up. For those still training toward eligibility, HI-GBC Training covers preparatory pathways.
Building a HI-GBC-Specific Prep Plan
Generic study advice - flashcards, timed drills, spaced review - only helps if it's mapped onto the actual blueprint. Given that Concrete and Associated Trades carry the heaviest weight, and that Domains 3 and 6 are scope-restricted to specific license classifications, a sensible plan front-loads those areas rather than treating all eight domains equally.
Concrete (C-31a scope) and Associated Trades
- Drill the two highest-weighted domains first since they carry the most scored questions
- Practice distinguishing C-31a-specific content from general concrete trivia
Plan Reading, Sitework/Foundations, Carpentry
- Work through takeoff and drawing-interpretation practice questions
- Review foundation and framing sequencing under closed-book conditions
Roofing (C-42a/C-42b), Safety OSHA, Thermal & Moisture
- Confirm roofing scope matches C-42a/C-42b, not general roofing knowledge
- Review OSHA-aligned jobsite safety fundamentals
Full-Length Practice and Timing Drills
- Simulate the 240-minute, 80-question format including pacing checkpoints
- Review the closed-book reference list so you know what to study, not memorize verbatim during the exam
For a structured week-by-week plan built entirely around this blueprint, see HI-GBC Study Guide 2026: How to Pass on Your First Attempt. If you want a condensed reference to review the night before your test date, HI-GBC Cheat Sheet 2026: One-Page Review of Must-Know Facts compiles the must-know numbers in one place. You can also run realistic timed questions through our HI-GBC practice test platform to get comfortable with the 240-minute format before test day.
Frequently Asked Questions
HI-GBC refers to the Hawaii General Building Contractor (B) Trade Exam, the PSI-administered test required for B-classification contractor licensure through the Hawaii Contractors License Board.
No. They are separate exams with separate outlines and fees. The trade exam costs $85 and covers the eight construction domains; the Business and Law exam costs $80 for new applicants and follows its own outline, last updated March 30, 2026.
The scored portion has 80 multiple-choice questions with 240 minutes allotted. Up to 10 additional unscored experimental questions may appear, and PSI states time spent on those doesn't count against your 240 minutes.
The exam is closed book, so listed trade references like the 2018 IBC are for study only and are not allowed in the testing room. PSI provides an on-screen calculator, or you may use your own if it's silent, nonprinting, and nonprogrammable.
Once the Hawaii Contractors License Board approves your application, you must pass all required exams - trade and Business and Law - within six months of that approval date.