- What GARBC Actually Means
- Who Governs and Administers the Exam
- Exam Format: Two Tests, Two Time Limits
- The 8 Trade Knowledge Domains
- What Residential-Basic Actually Covers
- Eligibility Before You Sit for the Exam
- Insurance and Financial Responsibility
- After You Pass: Renewal and CE
- Who Actually Needs GARBC
- A Realistic Prep Timeline
- Frequently Asked Questions
- GARBC is the Georgia Residential-Basic Contractor License Exam, run by PSI for the state licensing board.
- Two separate open-book exams: 80 questions/200 minutes (trade) and 50 questions/120 minutes (Business and Law).
- Both exams require a 70% score, and PSI may include unscored experimental items.
- General Code and Construction Knowledge is the single largest domain at 22.5% of the trade exam.
What GARBC Actually Means
GARBC stands for the Georgia Residential-Basic Contractor License Exam. It is the credentialing exam a contractor must pass to legally build, alter, or repair detached one- and two-family homes and certain townhouses in Georgia. If you have landed here searching "what is GARBC," the short answer is: it's a state licensing exam, not a national certification badge and not any of the other credentials that happen to share the same four-letter acronym. Every fact in this article refers specifically to the Georgia exam.
For a deeper breakdown of terminology and how the name is used across the industry, see our companion pieces on GARBC Meaning and What Does GARBC Stand For?
Who Governs and Administers the Exam
The exam is governed by the Georgia State Licensing Board for Residential and Commercial General Contractors, Residential Contractors Division. Administration of the actual test-day logistics - scheduling, delivery, scoring - is handled by PSI, a third-party testing vendor. The board sets the standards and license scope; PSI runs the exam centers and computer-based testing systems.
Exam Format: Two Tests, Two Time Limits
Licensure under GARBC requires passing two separate computer-based exams:
- Residential-Basic examination: 80 questions, 200-minute limit
- Business and Law examination: 50 questions, 120-minute limit
Each exam requires a score of 70% to pass. PSI may embed unscored experimental questions in either exam, meaning the number of questions you see may not perfectly reflect the number that count toward your score. For the full breakdown of how passing scores are calculated and what a 70% actually means question-by-question, read GARBC Passing Score 2026: Exactly What You Need to Pass.
Both exams are open book, but PSI enforces strict permanent-tab and no-loose-paper rules - meaning your reference materials must have tabs permanently affixed and cannot contain loose inserts or handwritten notes tucked between pages. A silent, nonprinting, nonprogrammable calculator is permitted. Candidates who show up with the wrong binder setup risk being turned away at check-in, so review exam-day rules carefully before you schedule.
Key Takeaway
Because the exam is open book, memorization matters less than knowing exactly where information lives in your reference materials and how fast you can find it under a 200-minute clock.
The 8 Trade Knowledge Domains
The Residential-Basic examination is built around eight weighted content domains. Understanding these weights is the single most important step in building a study plan, because time spent on a 6.25% domain should never equal time spent on a 22.5% domain.
Domain 6: General Code and Construction Knowledge (22.5%)
The largest domain by far. Covers building code fundamentals, permitting, inspections, and general construction principles that cut across every trade area.
- Expect the heaviest concentration of questions here
- Code interpretation questions often reference specific sections
Domain 4: Carpentry (20%)
Framing, rough carpentry, finish work, and structural wood systems specific to detached and townhouse residential construction.
- Second-largest domain - combined with Domain 6, these two account for nearly 43% of the exam
| Domain | Weight |
|---|---|
| 1. Sitework, Footings and Foundation | 10% |
| 2. Concrete and Concrete Reinforcement | 10% |
| 3. Masonry | 6.25% |
| 4. Carpentry | 20% |
| 5. Roofing | 10% |
| 6. General Code and Construction Knowledge | 22.5% |
| 7. Associated Trades | 12.5% |
| 8. OSHA Safety | 8.75% |
Note that these percentages apply to the Residential-Basic trade exam only; the Business and Law exam is scored and structured separately. For an item-by-item walkthrough of what each domain actually tests, along with sample topic lists, see the GARBC Exam Domains 2026: Complete Guide to All 8 Content Areas.
What Residential-Basic Actually Covers
The Residential-Basic license scope is narrower than a general contractor license. It authorizes work on:
- Detached one- and two-family residences
- One-family townhouses not more than three stories high
- Accessory structures tied to the above (garages, sheds, and similar structures)
This scope definition is why domains like Concrete, Masonry, and Roofing focus on residential-scale applications rather than commercial systems. Everything in the exam ties back to what a licensed Residential-Basic contractor is legally permitted to build.
Eligibility Before You Sit for the Exam
Georgia does not let just anyone register for the exam. Before you're approved to test, you must meet several requirements:
- 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 application
- Meet the board's character and financial-responsibility standards
Once approved, your exam eligibility is valid for one year and allows up to three sittings before you must go through reapplication rules again. That window matters - if you fail twice and let the clock run out before your third attempt, you're back to square one on paperwork. A full walkthrough of every prerequisite, including how to document your qualifying experience, is in GARBC Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Insurance and Financial Responsibility
Passing the exam is only part of licensure. Applicants must also carry:
- At least $300,000 in general-liability insurance
- Workers' compensation coverage when required
These aren't exam topics you'll be tested on directly in most cases, but they are a licensure gate that runs parallel to the exam requirement. Budgeting for insurance alongside exam fees is a step many first-time applicants underestimate. For a full cost picture that accounts for exam fees, insurance, and related expenses, see GARBC Certification Cost 2026: Complete Pricing Breakdown.
After You Pass: Renewal and CE
Passing both exams doesn't mean you're finished with obligations. 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 your renewal even if your original exam scores were strong.
Key Takeaway
Mark your CE Broker reporting on a calendar the same day you get your license - continuing education is an annual obligation, not something to handle only in renewal years.
Who Actually Needs GARBC
The Residential-Basic license is aimed at contractors who build or renovate single-family and small multi-family residential structures - this includes independent remodelers, custom home builders working within the three-story townhouse limit, and site supervisors who take on significant project responsibility. It is not a substitute for a general contractor's commercial license, and it does not cover structures outside the detached-home and small-townhouse scope described above.
If you're evaluating whether pursuing this license fits your career goals, our analysis in Is the GARBC Certification Worth It? Complete ROI Analysis 2026 and GARBC Salary Guide 2026: Complete Earnings Analysis can help you think through the decision. For those already committed, GARBC Jobs covers the kinds of roles licensed contractors typically pursue.
A Realistic Prep Timeline
Because Domain 6 (General Code and Construction Knowledge, 22.5%) and Domain 4 (Carpentry, 20%) together make up nearly half the trade exam, an effective study schedule front-loads those two domains rather than moving through the list in order.
General Code and Construction Knowledge
- Build your tabbed open-book reference system around code sections first, since this domain carries the most weight
Carpentry
- Work through framing, rough carpentry, and finish carpentry questions specific to residential scope
Sitework, Concrete, and Roofing
- Cover these mid-weight domains (10% each) together since they share foundational construction sequencing logic
Associated Trades, OSHA Safety, and Masonry
- Finish with the smaller-weighted domains, then run full-length timed practice under the 200-minute limit
This is not a generic study template - it's sequenced specifically around GARBC's domain weights. For a complete study plan with practice question strategy and open-book tab organization tips, read the GARBC Study Guide 2026: How to Pass on Your First Attempt. You can also build timed practice habits using full-length simulations on our practice test platform before exam day.
Frequently Asked Questions
No. GARBC is a Georgia-specific state license exam governed by the Georgia State Licensing Board for Residential and Commercial General Contractors and administered by PSI. It does not carry authority outside Georgia.
Two: the 80-question Residential-Basic examination (200-minute limit) and the separate 50-question Business and Law examination (120-minute limit). Each requires a 70% score.
Both exams are open book, but PSI enforces permanent-tab and no-loose-paper rules for reference materials. A silent, nonprinting, nonprogrammable calculator is also allowed.
Exam approval remains valid for one year and allows up to three sittings before reapplication rules apply, so you have room to retest without immediately restarting the application process.
No. The scope is limited to detached one- and two-family residences, one-family townhouses of three stories or fewer, and their accessory structures.