GCA-II Pass Rate 2026: What the Data Shows

Is There an Official GCA-II Pass Rate?

Anyone searching for a hard percentage on the Georgia Conditioned Air Contractor Class II Examination will run into a wall: the Georgia State Construction Industry Licensing Board's Division of Conditioned Air Contractors does not publish pass/fail statistics for the Class II unrestricted license exam, and PSI, the third-party administrator, does not release candidate-level scoring breakdowns to the public either. That's a meaningful distinction from other credentialing programs that issue annual score reports.

What this means practically: any blog or forum post citing a specific GCA-II pass rate is either guessing, referencing an unrelated credential that happens to share the acronym, or repeating a number with no verifiable source. This article won't do that. Instead, it looks at the structural facts of the exam - the scoring model, format, domain weighting, and eligibility requirements - to explain what actually drives whether a candidate passes or fails.

How the Scaled Score of 70 Actually Works

The GCA-II exam delivers 100 scored questions plus 20 unscored pretest questions, for 120 total items, spread across two 3.5-hour sessions (seven hours total). Candidates never know which 20 questions are unscored, so every question must be treated as if it counts. The final result is reported as a scaled score, with 70 as the passing threshold - not a raw percentage of questions answered correctly.

Because the pretest questions are being trialed for future exam forms, their inclusion doesn't change your prep strategy, but it does mean you can't back into your score by counting how many questions "felt hard." A cluster of difficult pretest items on installation code edge cases, for example, might not even be scored - but you won't know that during the exam.

For a full breakdown of exactly what the 70 scaled-score threshold means in raw terms and how PSI reports results, see GCA-II Passing Score 2026: Exactly What You Need to Pass.

Exam Format Factors That Influence Outcomes

Several structural features of the GCA-II exam affect how candidates perform, independent of any published statistic:

• Open-book format: The exam is open book under PSI's approved-reference rules, meaning candidates can bring permitted manuals and code references. This rewards organization over rote memorization - but only for candidates who've built tabbed, indexed references in advance.
• Calculator restrictions: Only a silent, non-programmable calculator is permitted, which matters heavily for System Design load and duct-sizing calculations.
• Two-part, seven-hour structure: Splitting the exam into two 3.5-hour blocks changes pacing strategy - candidates need a plan for each half rather than treating it as one long sitting.
• One-year approval window: Exam approval is valid for one year after the Board approves an application, so candidates who delay scheduling risk having to reapply.

These mechanics are covered in more depth in How Hard Is the GCA-II Exam? Complete Difficulty Guide 2026, which walks through how the open-book format interacts with the time limit.

Why System Design Drives Results

The GCA-II exam is organized into four domains:

Because System Design carries the most weight, candidates who under-prepare Manual J and Manual D content are statistically more exposed than those who neglect a smaller domain like Regulations. This is the single biggest lever available to a candidate trying to improve their odds, and it's why the domain breakdown deserves its own study block - see GCA-II Exam Domains 2026: Complete Guide to All 4 Content Areas for a question-by-question walkthrough of each area.

Who Sits for This Exam - and Why That Matters

GCA-II candidates aren't entry-level test-takers. To even qualify, applicants need five years of qualifying conditioned-air experience, including documented work on systems above the Class I limits, three professional references, EPA certification, and completion of Board-approved Manuals J&D and N&Q coursework. The $110 initial application fee is paid before the Board reviews eligibility, and only after approval does the one-year exam window open.

This eligibility bar shapes who's in the room: experienced HVAC professionals moving from Class I restricted work - or from journeyman-level field roles - into unrestricted commercial-scope licensure. Employers hiring for larger commercial mechanical contracts, design-build firms, and companies bidding jobs above the Class I BTU thresholds are the ones who need Class II license holders on staff. That's a very different applicant pool than an entry-level trade exam, which is part of why generic "exam difficulty" comparisons across unrelated credentials are misleading.

For a full rundown of what it takes to even sit for the exam, see GCA-II Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Readiness Factors That Correlate With Passing

Without a published pass rate, the most useful signal is qualitative: what separates candidates who walk out confident from those who don't. Based on the exam's actual structure, a few readiness factors stand out.

• Manual J/D fluency, not just familiarity: Since System Design dominates the exam, candidates who can execute a load calculation quickly - not just recognize the steps - have a structural advantage.
• Reference organization for open-book conditions: Seven hours sounds long, but with 120 questions, per-question time is tight. Candidates who tab and index their approved references in advance move faster than those flipping through unmarked manuals.
• Calculator fluency under restriction: Because only silent, non-programmable calculators are allowed, candidates need to be comfortable running manual load and duct calculations without shortcuts they may have used in trade school.
• Timing discipline across two sessions: Treating the exam as two separate 3.5-hour tests, with a strategy for each, prevents candidates from running out of time in the second half after over-investing in the first.
• Scheduling inside the one-year approval window: Candidates who wait too long after Board approval risk testing after their knowledge has decayed, or missing the window entirely and needing to reapply.

A Domain-Weighted Prep Approach

Generic study techniques - spaced repetition, timed practice blocks - only help if they're pointed at the right content. Given that System Design is the dominant domain, a simple way to weight your remaining study time is to front-load the heaviest domain first, then work backward through the smaller ones.

If you want a structured, week-by-week plan built specifically around this exam's format and domain weighting, GCA-II Study Guide 2026: How to Pass on Your First Attempt expands on this same sequencing in more detail. And once you've built your reference tabs and calculation muscle memory, running full-length timed sets on our GCA-II practice test platform is the closest simulation available to the real seven-hour, two-part format.

It's also worth remembering that "passing" isn't just about exam-day performance - it's downstream of everything the Board requires before you're even approved to test: the five years of qualifying experience, EPA certification, and Manuals J&D and N&Q coursework. Candidates who treat that coursework as a genuine learning phase, rather than a box to check for the $110 application fee, tend to walk into the exam room with System Design concepts already internalized rather than freshly memorized. That's a meaningful edge given how much of the scored content sits in that one domain. Running a few full-length sessions on georgiaconditionedexam.com's practice platform before your scheduled date can help surface which domain still needs work while you still have time inside your one-year approval window to address it.

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