- The GAMP Class II exam has 140 scored questions plus 28 unscored pretest items across two 3.5-hour parts.
- A final scaled score of 70 is required to pass; there is no separate cut score per domain.
- Domain 5, Perform Plumbing Systems Installation Activities, carries the heaviest weight at 15%.
- Exams given from May 1, 2026 test only the 2024 Georgia Plumbing Code and 2024 Georgia Gas Code with Georgia amendments.
What This Cheat Sheet Covers
This page is a condensed, one-stop review of the facts you need locked in before sitting the Georgia Master Plumber License Exam (Class II Unrestricted), administered by PSI on behalf of the Georgia State Division of Master and Journeyman Plumbers within the Georgia Construction Industry Licensing Board. It is not a substitute for a full study plan - for that, see the GAMP Study Guide 2026: How to Pass on Your First Attempt - but it is what you should be able to recite from memory the night before your exam window.
If you want deeper background on any single fact below, this cheat sheet links out to companion articles covering the domains, the pass rate, the cost, and the requirements in detail. Bookmark this page and use it as your final review sheet the week of your appointment.
Exam Format at a Glance
The Class II Unrestricted exam is computer-based and split into two parts of 3.5 hours each. In total you will see 140 scored multiple-choice questions along with 28 unscored pretest questions mixed in - you won't know which items are scored, so treat every question with equal seriousness. The exam is closed book, meaning no code books, notes, or reference materials are permitted at the workstation. A silent, nonprogrammable calculator is allowed for the math-heavy items you'll encounter in the design and calculation domains.
- Total questions: 140 scored + 28 unscored pretest = 168 items presented
- Format: Two sittings of 3.5 hours each, computer-based via PSI
- Materials allowed: Silent, nonprogrammable calculator only
- Passing standard: Final scaled score of 70
For a breakdown of how difficult candidates typically find the two-part structure and the pacing it demands, see How Hard Is the GAMP Exam? Complete Difficulty Guide 2026.
The 12 GAMP Domains Ranked by Weight
Every scored question falls into one of twelve content domains. Knowing the weight of each domain tells you exactly where to spend your remaining study hours. The full domain guide with sub-topics lives at GAMP Exam Domains 2026: Complete Guide to All 12 Content Areas, but here is the ranked list you need memorized:
| Domain | Weight |
|---|---|
| Domain 5: Perform Plumbing Systems Installation Activities | 15% |
| Domain 2: Comply with Regulations | 10.71% |
| Domain 7: Perform Maintenance and Repair Activities | 10.71% |
| Domain 8: Safety-related Issues | 10.71% |
| Domain 10: Comply with Business Laws | 10.71% |
| Domain 11: Comply with Administrative Requirements | 10.71% |
| Domain 4: Perform Pipe Cutting and Joining Activities | 7.14% |
| Domain 12: Plumbing System Design | 7.14% |
| Domain 3: Work Planning/Organizing | 5% |
| Domain 6: Perform System Testing Activities | 5% |
| Domain 1: Comply with General Laws | 3.57% |
| Domain 9: Calculate Offset, Volume, Area, Pressure, Depth, Circumference, Radius, Weight, and Related Quantities | 3.57% |
Domain 5 - Perform Plumbing Systems Installation Activities (15%)
As the single largest domain, this is where the most points are available. Candidates must understand rough-in and finish installation of water supply, DWV, and gas piping systems as governed under Class II's unrestricted scope.
- Sizing and layout for supply and drainage systems
- Fixture and appliance installation sequencing
- Venting and trap requirements tied to system installation
Domains 2, 7, 8, 10, and 11 - The Four-Way Tie at 10.71%
Five domains share the second-highest weight, together accounting for more than 40% of the exam. This cluster covers regulatory compliance, maintenance/repair procedure, safety, business law, and administrative requirements - treat these five as equally critical study blocks, not afterthoughts to the installation domain.
Key Takeaway
Domains 2, 7, 8, 10, and 11 collectively outweigh Domain 5 in total points. Don't over-index on installation content at the expense of regulation, safety, business law, and administrative requirements.
Eligibility & Application Essentials
Under the licensing law effective July 1, 2026, applicants need five years of full-time plumbing experience before they can sit for the Class II Unrestricted exam. How those five years break down depends on your Journeyman licensure timing:
- Licensed as a Georgia Journeyman Plumber before March 1, 2025: only two of the five years must be as a Journeyman.
- Licensed as a Georgia Journeyman Plumber later: four of the five years must be as a Journeyman.
- Class II experience requirement: at least two of your years must be in unrestricted Class II work, regardless of which Journeyman timeline applies.
Beyond the experience threshold, your application package needs supervisor affidavits, identity and lawful-presence documentation, and a background check before PSI will schedule you. Missing paperwork is one of the most common reasons candidates delay their exam date. For the full eligibility walkthrough, see GAMP Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Code Basis & Closed-Book Rules
Code editions change, and studying the wrong year is a fast way to waste weeks of prep. For exams administered beginning May 1, 2026, content is based exclusively on the 2024 Georgia Plumbing Code and the 2024 Georgia Gas Code, including Georgia-specific amendments. If your study materials reference an older edition, discard them or verify the section numbers against the current code before relying on them.
Remember that the exam itself is closed book - you won't have the code text in front of you at the testing center, so familiarity has to come from repetition beforehand, not lookup during the test. The only physical aid permitted is a silent, nonprogrammable calculator, which matters most for Domain 9's calculation questions and the sizing work embedded in Domain 5 and Domain 12.
Scoring, Retakes & the Review Course Rule
Scoring on the GAMP exam is reported as a single scaled number, and you need a final scaled score of 70 to pass. There is no publicly broken-out passing threshold per individual domain - your performance across all 140 scored items is combined into that one scaled result. A full explanation of how scaled scoring works and what it means for a borderline result is available at GAMP Passing Score 2026: Exactly What You Need to Pass.
If you don't pass on your first attempt, you can retest, but pay attention to the escalation rule: after two failed attempts, Georgia requires you to complete a Board-approved review course before you're permitted to sit for the exam again. That makes your second attempt effectively your last "free" try - treat it with the same seriousness as your first. If you're still deciding how much runway to give yourself, the historical performance context at GAMP Pass Rate 2026: What the Data Shows is worth reading before you schedule.
Key Takeaway
Your second attempt is your last unrestricted retake. A third try requires completing a Board-approved review course first, so don't schedule your second sitting casually.
Renewal & Continuing Education
Passing the exam isn't the finish line - Georgia Master Plumber licenses renew by November 30 of even-numbered years, and each renewal cycle requires 8 continuing-education hours. Mark your calendar now so the renewal deadline doesn't sneak up on you after you've already invested the time to pass the exam itself.
- Renewal deadline: November 30, even-numbered years
- CE requirement per cycle: 8 hours
If you're weighing the total investment of time and money against the long-term license upkeep, the full cost picture is broken down at GAMP Certification Cost 2026: Complete Pricing Breakdown.
Domain Priority Plan for Final Review
If your exam date is close and you need to triage your remaining study time, allocate it according to domain weight rather than personal comfort. Here's a compressed structure for the final stretch before test day:
Highest-Weight Domain
- Drill Domain 5 (Perform Plumbing Systems Installation Activities) - 15% of the exam, the single biggest point pool
- Cross-check installation sequencing against the 2024 Georgia Plumbing Code sections
The 10.71% Cluster
- Cycle through Domains 2, 7, 8, 10, and 11 in rotation - regulations, maintenance/repair, safety, business law, administrative requirements
- Use practice questions to expose weak spots in business law and administrative paperwork, areas candidates often underestimate
Mid-Weight and Calculation Domains
- Review Domain 4 (pipe cutting and joining) and Domain 12 (plumbing system design) at 7.14% each
- Practice calculator-based problems for Domain 9 (offset, volume, area, pressure, depth, circumference, radius, weight)
Lower-Weight Domains and Full Review
- Finish with Domains 1, 3, and 6 - general laws, work planning, and system testing
- Run a full-length timed practice set covering all 12 domains proportionally
This isn't a generic weekly template - it's sequenced specifically around GAMP's own domain weights, so the highest-value content gets reviewed first while your energy and focus are strongest. For a longer-horizon version of this plan built for candidates starting further out, see the full GAMP Study Guide 2026.
Quick-Reference Facts Table
| Item | Detail |
|---|---|
| Governing body | Georgia State Division of Master and Journeyman Plumbers / Georgia Construction Industry Licensing Board |
| Exam administrator | PSI |
| Scored questions | 140 |
| Unscored pretest questions | 28 |
| Exam structure | Two parts, 3.5 hours each |
| Passing score | 70 (scaled) |
| Materials allowed | Silent, nonprogrammable calculator only (closed book) |
| Code basis (exams from May 1, 2026) | 2024 Georgia Plumbing Code, 2024 Georgia Gas Code, with Georgia amendments |
| Experience requirement (law effective July 1, 2026) | 5 years full-time; 2 or 4 years as Journeyman depending on licensure date; 2 years minimum in unrestricted Class II work |
| Retake rule | Board-approved review course required after two failures |
| License renewal | By November 30 of even-numbered years |
| CE requirement | 8 hours per renewal cycle |
| Largest domain | Domain 5 - Perform Plumbing Systems Installation Activities (15%) |
To put these numbers in context against career outcomes, see GAMP Salary Guide 2026: Complete Earnings Analysis and Is the GAMP Certification Worth It? Complete ROI Analysis 2026. And when you're ready to test your recall against realistic exam-style questions, head over to our practice test platform to run a timed simulation before scheduling with PSI.
FAQ
There are 140 scored multiple-choice questions plus 28 unscored pretest questions, split across two 3.5-hour parts.
You need a final scaled score of 70. Full detail on how scaled scoring is calculated is available at the passing score guide.
Yes, a silent, nonprogrammable calculator is allowed. No other reference materials are permitted since the exam is closed book.
Start with Domain 5, Perform Plumbing Systems Installation Activities, since it carries the highest single weight at 15%. Then rotate through the five domains tied at 10.71% each.
After two failed attempts, Georgia requires completion of a Board-approved review course before you can sit for the exam again.