A2L Refrigerant Safety Certification (ESCO)
The A2L certification exam validates a technician's knowledge of low-GWP flammable refrigerant safety, including properties, handling, charge limits, leak detection, and regulatory compliance.
50
Questions
60 min
Time Limit
70%
To Pass
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Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds