- HI-GBC refers specifically to the Hawaii General Building Contractor (B) Trade Exam, not any other credential sharing the acronym.
- PSI administers the exam for the Hawaii Contractors License Board under the DCCA's Professional and Vocational Licensing Division.
- The B trade exam has 80 scored questions, a 240-minute limit, and requires 75% (60 correct) to pass.
- Trade exam cost is $85, plus $80 for the separate Business and Law exam, totaling $165 in exam fees.
What HI-GBC Actually Stands For
HI-GBC stands for the Hawaii General Building Contractor (B) Trade Exam - the trade-specific licensing test administered on behalf of the Hawaii Contractors License Board. It is not a generic industry designation, a national safety certificate, or a marketing badge. It is a defined, state-regulated examination tied to the "B" classification, one of the specific contractor license types recognized in Hawaii's licensing structure.
Because several unrelated credentials in other industries also use the letters "HI-GBC," it's worth being precise here: on this site, and in every fact referenced in this article, HI-GBC means the Hawaii General Building Contractor (B) Trade Exam and nothing else. If you've seen different fee amounts, different pass rates, or different renewal cycles referenced elsewhere for something called "HI-GBC," that content is describing a different credential entirely. Everything below reflects the actual Hawaii exam bulletin and Board requirements.
Who Runs the Exam Behind the Acronym
The HI-GBC exam sits under a specific chain of authority:
- Hawaii Contractors License Board - sets licensing requirements and approves applicants before they can register for testing.
- Department of Commerce and Consumer Affairs (DCCA) - the parent state agency overseeing professional licensing in Hawaii.
- Professional and Vocational Licensing Division (PVL) - the DCCA division that processes contractor licensing applications.
- PSI - the third-party testing vendor that actually writes, delivers, and scores the B - General Building Contractor trade examination, along with the separate Business and Law exam.
This matters because candidates sometimes assume "HI-GBC" is issued by a private certifying body. It isn't. The exam exists because Hawaii's Contractors License Board requires it as part of the pathway to obtaining a General Building Contractor (B) license, and PSI is simply the delivery mechanism. If you want the full breakdown of what this credential is and how it fits into Hawaii's licensing system, see What Is HI-GBC? and HI-GBC Certification.
The "B" Trade Scope Explained
The "B" in HI-GBC identifies the General Building Contractor classification - the license type covering general building construction work, as opposed to specialty trade licenses. The exam outline reflects that broad scope but still draws firm boundaries around adjacent trades. Two examples matter a lot for candidates:
- The outline's Concrete topic area is restricted specifically to C-31a work.
- The outline's Roofing topic area is restricted specifically to C-42a/C-42b work.
In other words, HI-GBC doesn't test the full universe of concrete or roofing specialty licensing content - it tests the slice relevant to general building contractors. Misunderstanding this scope is a common way candidates over-study irrelevant specialty material or, worse, under-study the exact slice that actually appears. For a full walkthrough of every content area and how they're weighted, review the HI-GBC Exam Domains 2026: Complete Guide to All 8 Content Areas.
Exam Format, Timing, and Fees
The mechanics of the HI-GBC exam are specific and worth memorizing before you ever schedule a seat:
| Element | Detail |
|---|---|
| Format | Computer-based, multiple-choice |
| Delivery | Test centers or remote proctoring via PSI |
| Scored questions | 80 |
| Unscored (experimental) questions | Up to 10 additional, time not counted against you |
| Time allowed | 240 minutes |
| Passing score | 75% (60 correct answers) |
| Reference materials | Closed book - no IBC or trade references permitted |
| Calculator | On-screen PSI calculator, or an approved silent, nonprinting, nonprogrammable calculator |
| Trade exam fee | $85 |
| Business and Law exam fee (new applicants) | $80 |
| Combined exam charges | $165 |
Note that the $165 figure covers examination charges only - it does not include the separate $50 sole-proprietor or responsible-managing-employee application fee, and it does not include license issuance or renewal costs. For a complete cost breakdown across every stage of licensure, see HI-GBC Certification Cost 2026: Complete Pricing Breakdown.
Key Takeaway
Because the exam is strictly closed book, memorization and applied understanding matter more than reference familiarity. You cannot bring the 2018 IBC or any trade reference into the test session - plan your prep accordingly rather than relying on "I'll look it up during the exam."
The Eight Content Domains Hiding Behind the Name
The acronym HI-GBC represents a single trade exam, but that exam is built from eight distinct content domains. Two of them - Concrete and Associated Trades - tie for the largest share of the outline, so candidates should not treat all eight domains as equally weighted in their study time.
Domain 1: Plan Reading and Estimating
Covers interpreting construction drawings, specifications, and quantity takeoffs - foundational skills tested throughout the exam rather than isolated to one section.
- Reading dimensions, symbols, and schedules accurately under time pressure
Domain 2: Sitework and Foundations
Focuses on site preparation, excavation, and foundation systems that precede structural framing.
- Understanding foundation types and how site conditions affect them
Domain 3: Concrete
One of the two largest domains on the outline. Restricted specifically to C-31a scope - not general concrete specialty content.
- Mix design basics, placement, and curing as relevant to general building work
Domain 4: Carpentry
Framing, rough carpentry, and finish carpentry concepts central to general building construction.
- Structural framing sequences and material specifications
Domain 5: Associated Trades
The other domain tying for largest share, covering interior and exterior finishes plus windows and doors.
- Broad coverage means this domain rewards steady, sustained review rather than last-minute cramming
Domain 6: Roofing
Restricted to C-42a/C-42b scope, mirroring the same trade-boundary logic used for the Concrete domain.
- Roofing systems and installation concepts relevant to general building contractors specifically
Domain 7: Safety OSHA
Jobsite safety standards and OSHA-related compliance concepts that apply across all general building work.
- Hazard recognition and required safety practices on active construction sites
Domain 8: Thermal and Moisture Protection
Covers building envelope concerns - insulation, waterproofing, and moisture control systems.
- How thermal and moisture systems interact with the rest of the building assembly
Because Concrete and Associated Trades carry the heaviest weight, candidates who allocate study time evenly across all eight domains often under-prepare for the two areas most likely to determine a pass or fail outcome. A domain-by-domain breakdown of exact scope and study priorities is available in the HI-GBC Exam Domains 2026 guide.
Who Can Even Sit for HI-GBC
Understanding what HI-GBC stands for also means understanding who is eligible to take it. This isn't an open-enrollment exam - the Hawaii Contractors License Board requires applicants to clear several gates first:
- 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 plus a chronological project list.
- Obtain Board approval before registering for the exam.
- Pass all required exams within six months of that approval.
Qualifying technical training may count for up to one year of experience credit, which can shorten the runway for candidates coming from formal construction education programs. Sole-proprietor and responsible-managing-employee applicants also pay a separate $50 application fee, distinct from the $165 in combined exam charges. For the full eligibility checklist and documentation requirements, see HI-GBC Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Turning the Acronym Into a Study Plan
Once you know exactly what HI-GBC stands for and how it's structured, the next question is how to convert that structure into a realistic prep schedule. Rather than generic weekly templates, base your timeline on the domain weighting you now understand:
Concrete and Associated Trades
- Start with the two largest domains first, since they carry the most scoring weight and the most content volume to absorb
Carpentry, Sitework and Foundations, Plan Reading and Estimating
- Build applied skills in framing, foundation systems, and drawing interpretation, which reinforce each other
Roofing, Thermal and Moisture Protection, Safety OSHA
- Close with the remaining domains and run full-length timed practice sessions to simulate the 240-minute, 80-question format
Because the exam is closed book and computer-based, timed practice under realistic conditions matters more than passive review. A structured walkthrough of this exact approach, including how to sequence review sessions around the six-month approval window, is covered in the HI-GBC Study Guide 2026: How to Pass on Your First Attempt. If you're still weighing how demanding the exam actually is before committing to a schedule, How Hard Is the HI-GBC Exam? Complete Difficulty Guide 2026 breaks down the format-driven challenges in more depth. You can also work through realistic scored practice questions at our practice test platform to gauge readiness against the actual 75% threshold before test day.
Key Takeaway
Knowing that Concrete and Associated Trades tie for the largest domain weight should directly change how you allocate study hours - not just how you read the outline.
Frequently Asked Questions
On this site, no. HI-GBC refers exclusively to the Hawaii General Building Contractor (B) Trade Exam administered by PSI for the Hawaii Contractors License Board. Other industries use similar acronyms for unrelated credentials, but those facts don't apply here.
PSI administers the exam on behalf of the Hawaii Contractors License Board, which operates under the DCCA's Professional and Vocational Licensing Division. Candidates test via computer-based multiple-choice format at test centers or through remote proctoring.
The exam contains 80 scored questions with a 240-minute time limit. Up to 10 additional unscored experimental questions may appear, but PSI states the time spent on those does not count against your exam time.
You need 75%, equivalent to 60 correct answers out of 80 scored questions. See HI-GBC Passing Score 2026: Exactly What You Need to Pass for a deeper breakdown of how scoring works.
No. The exam is closed book. The 2018 IBC and other listed trade references are intended for study purposes only and are not permitted during testing. You may use PSI's on-screen calculator or an approved silent, nonprinting, nonprogrammable calculator.