- Why There's No Official AL-REFRIG Pass Rate
- What the 70% Passing Score Actually Requires
- Domain Weighting: Where Points Are Won or Lost
- Exam Format and Testing Conditions
- Eligibility Friction That Shapes First-Attempt Outcomes
- If You Fail: Retake and Practical Exam Options
- A Domain-Ordered Study Timeline
- After Passing: The Licensing Step That Still Remains
- FAQ
- The Alabama Board and Prov, Inc. do not publish a numeric pass rate for the Refrigeration Contractors Examination.
- Passing requires 70% correct on 90 computer-based multiple-choice questions within a 4-hour limit.
- General Knowledge and Systems & Sizing carry the most weight at 14 questions each, followed by Piping and Maintenance/Troubleshooting at 13 each.
- A failed attempt costs another $175 for a written retake, or up to $375 for a Board-approved practical exam under Rule 440-X-3-.07.
Why There's No Official AL-REFRIG Pass Rate
Anyone searching for a hard percentage on how many candidates pass the Alabama Refrigeration Contractor Certification Exam on the first try will come up empty. The Alabama Board of Heating, Air Conditioning & Refrigeration Contractors, which oversees what it formally calls the Refrigeration Contractors Examination, does not release aggregate pass-rate statistics. Prov, Inc., the testing provider that administers the exam (listed under the exam title "Refrigeration"), also does not publish candidate-level scoring data publicly. That means any number you see quoted elsewhere as "the AL-REFRIG pass rate" is either outdated, unverifiable, or borrowed from a completely different credential that happens to share the acronym.
Instead of chasing a phantom statistic, the more useful exercise is understanding the structural factors that determine whether an individual candidate passes: how the exam is weighted, what the passing threshold actually demands, and where the eligibility process itself creates friction before a candidate ever sits down at a test center. That's what this article breaks down.
What the 70% Passing Score Actually Requires
The exam consists of 90 computer-based multiple-choice questions, and candidates have a 4-hour limit to complete it. The passing score is 70%. In practical terms, that means a candidate needs roughly 63 correct answers out of 90 - but because the score is weighted by domain question counts rather than evenly distributed, a candidate can't treat every topic area as equally important to their overall outcome.
For a full breakdown of how the passing threshold is calculated and what margin of error that leaves, see AL-REFRIG Passing Score 2026: Exactly What You Need to Pass. The short version: because General Knowledge and Systems & Sizing each contribute 14 of the 90 total questions, missing several questions in either domain has an outsized effect on your final score compared to missing questions in a domain worth only 1 or 2 questions, such as Business Organization or Payroll and Employment Taxes.
Domain Weighting: Where Points Are Won or Lost
The Prov candidate bulletin (revised September 4, 2026) lists official question allocations across all 17 content domains. Understanding this distribution is the single most reliable lever a candidate has over their own outcome, because it tells you exactly where study time produces the most return.
| Domain | Question Count |
|---|---|
| 1. General Knowledge | 14 |
| 2. Piping | 13 |
| 3. Systems & Sizing | 14 |
| 4. Maintenance/Troubleshooting | 13 |
| 5. Plan Reading | 2 |
| 6. Electrical Applications for Refrigeration Systems | 8 |
| 7. Business Organization | 1 |
| 8. Risk Management | 2 |
| 9. Project Management | 2 |
| 10. Estimating | 3 |
| 11. Safety and Environmental | 2 |
| 12. Labor Laws | 2 |
| 13. Payroll and Employment Taxes | 3 |
| 14. Financial Management | 3 |
| 15. Contracts | 2 |
| 16. Lien Laws | 2 |
| 17. Licensing Laws | 4 |
Four domains - General Knowledge, Systems & Sizing, Piping, and Maintenance/Troubleshooting - together account for 54 of the 90 questions, or the majority of the exam. Everything else, including the business and law topics (Domains 7-17), fills the remaining 36 questions across thirteen separate content areas, most worth just 1-4 questions apiece.
General Knowledge & Systems & Sizing (14 questions each)
These are the two largest domains and deserve first priority in any study plan. Candidates should be comfortable with core refrigeration principles, equipment sizing logic, and system fundamentals well before exam day.
- Refrigeration cycle fundamentals and terminology
- Load calculation and equipment sizing logic
- System selection criteria for commercial applications
Piping & Maintenance/Troubleshooting (13 questions each)
Tied for third-largest weight, these domains reward hands-on field familiarity as much as book knowledge.
- Pipe sizing, materials, and installation practices
- Diagnostic sequencing for common system faults
- Preventive maintenance schedules and documentation
For the full list of what each of the 17 domains actually tests, including the smaller business-and-law-adjacent domains, read AL-REFRIG Exam Domains 2026: Complete Guide to All 17 Content Areas. Business and law topics are included on this examination, but their combined weight is modest compared to the technical core.
Exam Format and Testing Conditions
Format familiarity matters more for this exam than for many licensing tests, because the AL-REFRIG exam is open-book - a detail that changes how candidates should prepare. It's administered at Prov test centers or remotely through Examroom after a system check, and candidates may bring reference materials, but only a simple four-function calculator is permitted. Highlighting, permanent tabs, and formulas handwritten in ink in approved references are allowed; loose handwritten notes, movable tabs, added photocopied sheets, and commercial exam-prep guides are not permitted in the testing room.
Because the Board and Prov reference lists overlap on the 2021 International Mechanical Code and 2020 NFPA 70 National Electrical Code but differ elsewhere, candidates should confirm accepted editions directly with Prov before buying materials - see our notes on AL-REFRIG Certification Cost 2026: Complete Pricing Breakdown for how reference-book spending fits into total exam cost.
Key Takeaway
Open-book access does not lower the practical difficulty of the exam - it shifts the skill tested from memorization to fast, accurate lookup under a 4-hour clock. Practice navigating your references before exam day, not during it.
Eligibility Friction That Shapes First-Attempt Outcomes
A meaningful share of candidates who "fail" the AL-REFRIG process never even get denied on the exam itself - they stall at eligibility. Under Code of Alabama section 34-31-28(c), candidates qualify either through 3,000 hours of qualifying work experience or graduation from an approved heating, air conditioning, or refrigeration curriculum. Work-experience applicants must submit notarized employer affidavits and corresponding W-2s; curriculum graduates submit graduation documentation. Citizenship or lawful-presence documentation is also required, and the Board must approve the application before scheduling can even begin.
Because the application packet retains older eligibility wording, candidates considering an apprenticeship- or coursework-only route should confirm acceptability with the Board before applying - don't assume based on the printed form alone. Once approved, eligibility lasts one year from approval, which is enough runway for most candidates but not unlimited. A full walkthrough of these requirements is available at AL-REFRIG Requirements 2026: Eligibility, Prerequisites & How to Qualify.
If You Fail: Retake and Practical Exam Options
A single failed attempt does not end your path to certification, but it does cost time and money. After a failed written attempt, candidates submit a re-examination request through Form EA-5 or the Board's re-examination portal and pay another $175 exam fee. Separately, under Rule 440-X-3-.07, the Board may approve a $375 practical examination after a failed written attempt if the candidate submits a written request; this practical option must be held within 6 months of the last unsuccessful written exam and is not a mandatory second stage - it's an alternative path some candidates pursue rather than retaking the written exam again.
Given those costs, minimizing the odds of a first failure is the financially rational strategy. That's the core argument behind building a domain-weighted study plan rather than studying every one of the 17 domains with equal intensity. For a broader look at how demanding the exam is relative to other contractor exams, see How Hard Is the AL-REFRIG Exam? Complete Difficulty Guide 2026.
A Domain-Ordered Study Timeline
Rather than a generic weekly template, the schedule below is ordered specifically by AL-REFRIG's own question allocations - heaviest domains first, smallest-weight business and law topics compressed near the end since they contribute the fewest total points.
General Knowledge & Systems & Sizing (28 combined questions)
- Refrigeration cycle fundamentals, load calculations, equipment sizing
- Build a reference-lookup habit using your approved open-book materials
Piping & Maintenance/Troubleshooting (26 combined questions)
- Pipe sizing standards and installation sequencing
- Fault-diagnosis logic trees for common commercial refrigeration failures
Electrical Applications for Refrigeration Systems (8 questions)
- Cross-reference 2020 NFPA 70 sections likely to appear
- Practice timed lookups since this domain often requires code cross-checking
Remaining 11 Smaller Domains (Plan Reading through Licensing Laws)
- Batch-review the business, contracts, and law-adjacent domains together
- Focus on breadth over depth given each domain's 1-4 question weight
For a more detailed first-attempt strategy that goes beyond scheduling, including how to practice under open-book, timed conditions, see AL-REFRIG Study Guide 2026: How to Pass on Your First Attempt. Running full-length timed sets on our AL-REFRIG practice test platform before exam day is one of the most direct ways to confirm you can execute this schedule's priorities under the real 4-hour limit.
After Passing: The Licensing Step That Still Remains
Passing the written exam is not the final step - it triggers a separate licensing application. Candidates seeking to actually contract must obtain active refrigeration certification, which costs $220 both initially and annually, requires a registered business name, and requires a $20,000 performance bond (the bond amount, not the premium you'll pay to obtain it). Candidates who want the credential without immediate contracting authority can instead hold inactive refrigeration certification at $110 initially and annually, which requires no bond but also does not authorize contracting work.
Renewal is annual by December 31, and late renewal adds a $250 fee on top of the standard renewal cost. Continuing education is normally 4 Board-approved hours annually, with up to 4 hours carried forward to the next cycle and a first-renewal exemption under Rule 440-X-4-.10. Proof of continuing education must be submitted before November 1; under Rule 440-X-4-.03 (effective July 14, 2025), hours submitted after November 1 and before January 1 incur a $25 deficiency fee, and any deficiency-extension application must reach the Board before December 31. None of this overlaps with EPA Section 608 technician certification, which remains a separate, distinct credential.
If you're weighing whether the full licensing and renewal commitment is worth it relative to the work it opens up, Is the AL-REFRIG Certification Worth It? Complete ROI Analysis 2026 and AL-REFRIG Salary Guide 2026: Complete Earnings Analysis both dig into that question in more depth. For employers and job seekers evaluating demand for certified contractors, see AL-REFRIG Jobs.
Key Takeaway
The exam is only the first cost checkpoint. Budget for the $175 exam fee, potential retake or practical exam fees, and the $220/$110 licensing tier before assuming you're finished.
FAQ
No. Neither the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors nor Prov, Inc. publishes aggregate pass-rate statistics for the Refrigeration Contractors Examination. Any specific percentage circulating online is not verifiable against an official source.
You need 70% correct across the 90 computer-based multiple-choice questions, completed within the 4-hour time limit. See AL-REFRIG Passing Score 2026 for a fuller breakdown.
General Knowledge and Systems & Sizing each carry 14 of the 90 questions - the largest weight on the exam - followed by Piping and Maintenance/Troubleshooting at 13 each. These four domains cover the majority of exam content.
You can request a re-examination via Form EA-5 or the Board's re-examination portal and pay another $175 fee, or under Rule 440-X-3-.07 request a $375 practical exam within 6 months of the failed written attempt as an alternative path.
No. Passing the written exam must be followed by a separate licensing application, and you'll choose between active certification ($220, requires a $20,000 bond) or inactive certification ($110, no contracting authority).