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What Is HI-GBC Certification?

TL;DR
  • HI-GBC is the B - General Building Contractor trade exam administered by PSI for Hawaii's Contractors License Board.
  • The trade exam has 80 scored questions, 240 minutes, and requires 75% (60 correct) to pass.
  • Trade exam fee is $85; the Business and Law exam adds $80, totaling $165 in exam charges.
  • Concrete and Associated Trades tie as the largest domains on the outline.

What HI-GBC Certification Actually Is

HI-GBC refers to the Hawaii General Building Contractor (B) Trade Exam - the trade-specific portion of the licensing process administered through PSI on behalf of the Hawaii Contractors License Board (CLB), part of the Department of Commerce and Consumer Affairs' Professional and Vocational Licensing Division. Passing this exam, alongside the separate Business and Law exam, is a required step toward holding a B-class general building contractor license in Hawaii.

This is not a voluntary industry certification badge you add to a resume for marketing purposes. It's a state licensing exam tied directly to legal authority to contract general building work in Hawaii. If you're researching this credential for the first time, our companion piece What Is HI-GBC? covers the same ground from a slightly different angle, and HI-GBC Meaning breaks down exactly what each letter in the acronym represents.

Not a Certificate - a Licensing Exam: HI-GBC results feed directly into your contractor license application. There's no separate "certification" issued apart from the license itself, which is why the Board approval step matters so much before you even register to test.

Who Issues It and Who Administers the Exam

Two entities matter here. The Hawaii Contractors License Board sets the licensing requirements, approves applicants, and issues the license itself. PSI is the third-party testing vendor that builds, schedules, and proctors the actual trade exam and the Business and Law exam. You cannot register with PSI until the Board has approved your application - this sequencing trips up a surprising number of first-time applicants who assume they can just book a test date the moment they decide to get licensed.

PSI's current bulletin for this exam is dated January 20, 2026, and the separate Business and Law outline was last updated March 30, 2026. If you're prepping from older material, double-check you're working from the current versions before you build a study plan around outdated content weighting.

Exam Structure, Fees, and Scoring

The B trade exam is computer-based, delivered either at a physical PSI test center or via remote proctoring, and it's closed book. That last point surprises some candidates: the 2018 IBC and other listed trade references are meant for study purposes only and are not permitted in the testing room. Everything you need has to already be in your head or accessible via the tools PSI provides on screen.

  • Scored questions: 80 multiple-choice items
  • Time allowed: 240 minutes
  • Passing score: 75%, which equals 60 correct answers
  • Unscored items: up to 10 experimental questions may be embedded, and PSI states time spent on those does not count against your exam time
  • Calculator: an on-screen calculator is provided, or you may bring an approved silent, nonprinting, nonprogrammable calculator

Because up to ten questions are unscored experimental items mixed in with no way to identify them, you should treat every question on screen as if it counts - pacing decisions should assume all 80-plus items matter. For a deeper breakdown of what that 75% threshold really means in practice, see HI-GBC Passing Score 2026: Exactly What You Need to Pass.

ItemDetail
Trade exam fee$85
Business and Law exam fee (new applicants)$80
Total examination charges$165
Sole-proprietor / RME application fee$50 (separate from exam and license fees)
Time to pass all exams after Board approvalSix months

For the complete fee picture including renewal figures, read HI-GBC Certification Cost 2026: Complete Pricing Breakdown.

The Eight Content Domains

The B trade exam outline organizes questions into eight domains. Two of them - Concrete and Associated Trades - tie for the largest share of the exam, so candidates who under-study either one are taking a real risk with a limited number of scored questions to work with.

Domain 1: Plan Reading and Estimating

Interpreting construction drawings, specifications, and takeoffs well enough to price and sequence a job accurately.

  • Symbol and notation recognition across trade drawings

Domain 2: Sitework and Foundations

Excavation, grading, footings, and foundation systems as they apply to general building projects.

  • Soil bearing and foundation placement fundamentals

Domain 3: Concrete

One of the two largest domains on the outline. Notably, the Concrete topic here is restricted specifically to C-31a scope of work, not general concrete practice at large.

  • Mix, placement, curing, and formwork within C-31a boundaries

Domain 4: Carpentry

Framing systems, rough and finish carpentry principles relevant to general building construction.

  • Structural framing sequencing and connections

Domain 5: Associated Trades

The other largest domain, covering interior and exterior finishes plus windows and doors - a broad category that rewards wide coverage rather than deep specialization.

  • Finish material installation standards and window/door integration

Domain 6: Roofing

The outline restricts this topic specifically to C-42a and C-42b work, so study time should be targeted at that defined scope rather than roofing broadly.

  • C-42a/C-42b installation and system requirements

Domain 7: Safety OSHA

Jobsite safety obligations and OSHA-related standards as they apply to general building contracting.

  • Hazard recognition and mandated safety practices

Domain 8: Thermal and Moisture Protection

Building envelope performance, insulation, and moisture control systems.

  • Weatherproofing and thermal barrier fundamentals

For a full walkthrough of how these eight areas interact and where the heaviest scoring weight sits, see HI-GBC Exam Domains 2026: Complete Guide to All 8 Content Areas.

Who Qualifies to Sit for the Exam

Before registering with PSI, you need Board approval. Generally, that means:

  • Being at least 18 years old
  • Documenting four years of supervisory experience within the preceding ten years
  • Submitting at least three notarized experience certificates plus a chronological project list
  • Qualifying technical training may earn up to one year of credit toward the experience requirement

Once approved, you're on the clock: all required exams must be passed within six months of that approval. Miss the window and you're looking at reapplying. A full breakdown of documentation expectations and edge cases lives in HI-GBC Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Key Takeaway

Gather your notarized experience certificates and project list before applying for Board approval - the six-month exam window starts the moment you're approved, not when you feel ready.

Who Hires Licensed General Building Contractors

A B-class license opens the door to general building contracting work across Hawaii - residential and light commercial construction firms, remodeling and renovation companies, and contracting operations that need a qualifying party or responsible managing employee to legally hold a license. Many candidates pursuing this exam are already working under someone else's license and are testing specifically so they can qualify their own company or step into an RME role, which explains why the $50 sole-proprietor/RME application fee exists as a distinct charge from the exam and license fees themselves.

If you're evaluating whether pursuing this license is worth the time and cost relative to staying unlicensed or working under another contractor, Is the HI-GBC Certification Worth It? Complete ROI Analysis 2026 and HI-GBC Salary Guide 2026: Complete Earnings Analysis address that question directly. For a sense of the job market this license feeds into, see HI-GBC Jobs.

How to Prepare for the Content Areas

Because Concrete (C-31a scope) and Associated Trades tie as the largest domains, your study calendar should give them proportionally more time than domains like Sitework and Foundations or Safety OSHA. A simple way to allocate a multi-week runway:

Weeks 1-2

Plan Reading, Estimating, Sitework and Foundations

  • Practice takeoff and drawing-interpretation questions daily
  • Review footing and foundation placement scenarios
Weeks 3-4

Concrete (C-31a) and Associated Trades

  • Drill these two heaviest-weighted domains with timed question sets
  • Cover interior/exterior finishes and window & door integration thoroughly
Week 5

Carpentry, Roofing (C-42a/C-42b), Thermal and Moisture Protection

  • Focus roofing review strictly within C-42a/C-42b scope
  • Connect envelope and moisture-control concepts to real assemblies
Week 6

Safety OSHA and Full Simulated Exams

  • Run full-length 240-minute practice sessions under closed-book conditions
  • Target consistent scores above 75% before test day

Since the exam is closed book, your goal isn't to know where information lives in the 2018 IBC or trade references - it's to have retained the underlying rules well enough to answer without them. Practicing under realistic, timed, closed-book conditions on our practice test platform is the closest simulation you'll get to actual test-day pressure. For a structured week-by-week plan built specifically around this outline, see HI-GBC Study Guide 2026: How to Pass on Your First Attempt, and if you want an honest read on how tough this exam really is relative to your background, check How Hard Is the HI-GBC Exam? Complete Difficulty Guide 2026.

Data-Informed Confidence: Before committing to a study timeline, it helps to know what outcomes actually look like for this exam. HI-GBC Pass Rate 2026: What the Data Shows lays out what's publicly known without guesswork.

Licensing Timeline and Renewal

Passing HI-GBC isn't the finish line - it's a checkpoint toward an active license that must be maintained. Hawaii contractor licenses renew on September 30 of even-numbered years. For the 2026 cycle, active entity/sole-proprietor renewal runs $338 and active responsible-managing-employee renewal runs $208, both subject to applicable insurance and entity/sole-proprietor tax-clearance requirements. Building these recurring costs into your long-term planning matters just as much as the upfront $165 in exam fees.

Knowing exactly when to register and test also matters logistically - Board approval timelines, the six-month testing window, and PSI scheduling all interact. HI-GBC Exam Dates 2026: Testing Windows, Deadlines & Scheduling walks through how to map your approval date against available test slots so you don't burn weeks of your six-month window waiting for an opening.

For a condensed reference you can glance at the week of your exam, bookmark HI-GBC Cheat Sheet 2026: One-Page Review of Must-Know Facts, and if formal coursework is part of your plan, HI-GBC Training outlines what structured preparation options look like.

Frequently Asked Questions

Is HI-GBC a certification I can earn without a license application?

No. HI-GBC is the trade exam component of Hawaii's general building contractor licensing process administered by PSI for the Contractors License Board. It requires prior Board approval, not just exam registration.

How many questions are on the HI-GBC trade exam and how long do I get?

The scored portion has 80 questions with 240 minutes allowed. Up to 10 additional unscored experimental questions may appear, and time spent on those does not count against your exam time.

What score do I need to pass?

You need 75%, which works out to 60 correct answers out of the 80 scored questions.

Can I bring reference books like the IBC into the exam?

No. The exam is closed book. Listed trade references, including the 2018 IBC, are for study purposes only and are not permitted during testing.

How much does taking the exams cost in total?

The trade exam is $85 and the Business and Law exam is $80 for new applicants, totaling $165 in examination charges. Sole-proprietor and RME application fees are a separate $50.

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