- GARBC refers to the Georgia Residential-Basic Contractor License Exam, administered by PSI for the state licensing board.
- Candidates must pass an 80-question Residential-Basic exam (200 minutes) and a separate 50-question Business and Law exam (120 minutes), each at 70%.
- General Code and Construction Knowledge is the heaviest domain at 22.5%, followed by Carpentry at 20%.
- Applicants must be 21+, have two years of qualifying experience, and show responsibility for two completed residential projects.
What Is A GARBC, Exactly?
GARBC stands for the Georgia Residential-Basic Contractor License Exam - the licensing test that qualifies contractors to build, alter, or repair detached one- and two-family homes and certain townhouses in Georgia. It is not a certificate you frame and hang on a wall for optional credibility; it's a required, state-mandated exam tied directly to a license number you must hold before legally contracting residential work of this scope.
Because "GARBC" is a common abbreviation pattern, it's worth being precise: on this site, and in this article, GARBC refers exclusively to the Georgia Residential-Basic Contractor License Exam. If you've seen the term used elsewhere for a different credential, that's a different program entirely - the requirements, fees, and content described here apply only to Georgia's residential contractor licensing exam.
Who Administers the GARBC
The exam is governed by the Georgia State Licensing Board for Residential and Commercial General Contractors, specifically its Residential Contractors Division. Day-to-day exam delivery - scheduling, proctoring, scoring - is handled by PSI, a third-party testing vendor commonly used for professional licensing exams. The board sets the eligibility rules and content standards; PSI runs the testing centers and computer-based exam platform.
If you're researching how the whole credentialing pathway fits together, our overview of GARBC Certification walks through the licensing process end to end, and the GARBC Requirements guide breaks down every prerequisite in detail.
Exam Format: Two Tests, Two Timers
Unlike a single-exam credential, the GARBC pathway requires passing two separate computer-based tests:
- Residential-Basic Examination: 80 questions, 200-minute time limit.
- Business and Law Examination: 50 questions, 120-minute time limit.
Each exam requires a score of 70% to pass. PSI may embed unscored experimental questions into either exam - these are indistinguishable from scored items, so there's no way to identify and skip them. Treat every question as if it counts.
Both exams are open book, but not "bring anything you want" open book. PSI enforces permanent-tab and no-loose-paper rules, meaning reference materials must have permanently affixed tabs and cannot contain loose inserts, sticky notes, or handwritten pages tucked inside. A silent, nonprinting, nonprogrammable calculator is allowed. If you're unsure whether your reference binder complies, review PSI's candidate bulletin before exam day rather than finding out at check-in.
Key Takeaway
Passing the GARBC means clearing two separate 70% thresholds - Residential-Basic and Business and Law - not one combined score. Prepare for both independently.
For a deeper look at exactly how scoring works and what a 70% translates to in raw question counts, see GARBC Passing Score 2026: Exactly What You Need to Pass. If you want a realistic sense of how tough the format feels in practice - open-book but time-pressured - How Hard Is the GARBC Exam? Complete Difficulty Guide 2026 covers that in depth.
What the Residential-Basic Exam Actually Covers
The 80-question Residential-Basic exam draws from eight trade domains. Knowing the weighting helps you allocate study time proportionally instead of spreading effort evenly across topics that don't carry equal weight on test day.
| Domain | Weight |
|---|---|
| General Code and Construction Knowledge | 22.5% |
| Carpentry | 20% |
| Sitework, Footings and Foundation | 10% |
| Concrete and Concrete Reinforcement | 10% |
| Roofing | 10% |
| Associated Trades | 12.5% |
| OSHA Safety | 8.75% |
| Masonry | 6.25% |
General Code and Construction Knowledge (22.5%)
The largest single domain, covering general building code application and broad construction fundamentals across a residential project's lifecycle.
- Code interpretation as it applies to typical residential builds
- General construction sequencing and documentation knowledge
Carpentry (20%)
The second-heaviest domain, reflecting how central framing and finish carpentry work is to residential construction.
- Framing methods for detached homes and townhouses
- Structural carpentry details tied to code compliance
Together, General Code and Construction Knowledge and Carpentry make up nearly 43% of the entire Residential-Basic exam - a candidate who masters only these two domains is already covering close to half the test. For a full breakdown of all eight domains with study guidance for each, read GARBC Exam Domains 2026: Complete Guide to All 8 Content Areas.
Who Can Sit for the GARBC
Eligibility for the Residential-Basic exam isn't open to anyone who registers and pays a fee. Candidates must meet several concrete requirements before the board approves them to test:
- Be at least 21 years old.
- Have at least two years of qualifying Residential-Basic experience.
- Demonstrate significant responsibility for two Residential-Basic projects completed within the two years before applying.
- Meet character and financial-responsibility standards set by the board.
- Maintain at least $300,000 in general-liability insurance.
- Carry workers' compensation coverage when required by law.
These requirements exist because the license lets someone take legal responsibility for residential construction projects - the board wants documented field experience and financial accountability in place before that authority is granted. If any of these criteria raise questions about your specific situation, GARBC Requirements 2026: Eligibility, Prerequisites & How to Qualify covers documentation and edge cases in more detail.
What a Residential-Basic License Lets You Build
The Residential-Basic scope is specific, and understanding it matters both for the exam and for your future work. It covers:
- Detached one-family residences
- Detached two-family residences
- One-family townhouses not more than three stories high
- Accessory structures associated with the above
This scope is why Carpentry, Sitework, Concrete, Roofing, and Masonry all appear as dedicated exam domains - the test is built around the actual trades involved in constructing these specific structure types, not commercial or high-rise construction. Employers, general contractors, and homeowners hiring a residential-basic license holder are hiring someone certified specifically for this category of build, which is a useful thing to understand if you're evaluating career paths after licensure - see GARBC Jobs for how license holders typically use this credential in the field.
How to Sequence Your Prep
Because the domains carry different weights, an efficient prep sequence front-loads the heaviest content areas rather than working through the exam outline in numerical order. A reasonable approach:
General Code and Construction Knowledge + Carpentry
- These two domains alone make up nearly half the Residential-Basic exam
- Build a reference tab system now - you'll use it on exam day under the open-book rules
Sitework, Concrete, and Roofing
- Each is weighted at 10%, so treat them as a matched set of mid-priority topics
- Focus on where these trades intersect with code requirements from Week 1
Associated Trades and OSHA Safety
- Associated Trades at 12.5% deserves real attention despite feeling secondary
- OSHA Safety questions tend to be straightforward if you know current safety standards
Masonry and Business and Law
- Masonry is the smallest domain at 6.25% but still worth dedicated review
- Begin separate prep for the 50-question Business and Law exam, which is scored independently
Notice that Business and Law prep is deliberately kept separate and late - it's a distinct 50-question, 120-minute exam with its own 70% passing threshold, and treating it as an afterthought is a common mistake. For a more detailed week-by-week plan with practice question strategy, see GARBC Study Guide 2026: How to Pass on Your First Attempt. You can also run through timed questions on our practice test platform to get a feel for the 200-minute and 120-minute pacing before test day.
Key Takeaway
Study General Code and Construction Knowledge and Carpentry first - together they represent nearly 43% of the Residential-Basic exam's weight.
After You Pass: Renewal and CE
Passing both exams isn't the finish line - it's the entry point to an ongoing licensing cycle. Georgia residential-basic licenses renew by June 30 of even-numbered years, and license holders must complete 3 continuing-education hours each year, reported through CE Broker. Missing CE reporting can jeopardize renewal, so it's worth building a habit of logging hours as you complete them rather than scrambling before the deadline.
If you're still weighing whether to pursue this license at all, the cost and long-term value questions are worth answering up front - GARBC Certification Cost 2026: Complete Pricing Breakdown and Is the GARBC Certification Worth It? Complete ROI Analysis 2026 both address the practical side of that decision, while GARBC Salary Guide 2026: Complete Earnings Analysis looks at how licensed contractors in this scope typically position their earnings.
For candidates who want the full picture in one place - exam mechanics, domain weights, and requirements - the GARBC Cheat Sheet 2026: One-Page Review of Must-Know Facts is a compact reference worth bookmarking, and GARBC Exam Dates 2026: Testing Windows, Deadlines & Scheduling helps you plan around your one-year approval window and three allowed sittings.
Before you register, it also helps to see real data on how candidates perform - GARBC Pass Rate 2026: What the Data Shows puts the exam's difficulty in context using verified figures rather than guesswork. And if you're brand new to the terminology and want the shortest possible explanation, our companion pieces What Is GARBC?, GARBC Meaning, and What Does GARBC Stand For? each answer the basics from a slightly different angle, alongside What Does GARBC Mean? and What Is GARBC Certification? for related framing. If formal exam prep courses interest you, GARBC Training covers what's available. You can also start practicing immediately with sample questions on the main practice test site.
Frequently Asked Questions
It's effectively two separate exams: the 80-question Residential-Basic exam (200 minutes) and the 50-question Business and Law exam (120 minutes). Each requires a 70% passing score independently.
Yes, both exams are open book, but PSI enforces permanent-tab and no-loose-paper rules. Materials must be bound with permanent tabs - loose sheets, sticky notes, or inserted pages are not allowed.
Your exam approval is valid for one year and covers three total sitting attempts. You can retest the part you failed within that window before reapplication rules apply.
General Code and Construction Knowledge, at 22.5%, is the single largest domain. Carpentry follows at 20%. Together they cover nearly half the Residential-Basic exam's content.
Yes. Candidates must be at least 21, have two years of qualifying Residential-Basic experience, and show significant responsibility for two completed residential projects in the two years before applying.