Free printable EPA 608 study card. Certification types, refrigerant properties (ODP, GWP), recovery rules, leak rates, and passing score requirements.

What’s inside

• Type I, II, III and Universal certification — what each covers
• Common refrigerants: R-22, R-410A, R-134a, R-404A, R-32, R-454B
• ODP and GWP — what they mean and why they matter
• Recovery and recycling rules — what is required before opening a system
• Leak rate limits and record-keeping requirements
• Passing score (70%) and where to take the exam

How to download / print

1. Click Open Printable Version below.
2. In the new tab, click the blue Save as PDF / Print button at the top.
3. Your browser print dialog opens — choose Save as PDF (Ctrl+P / Cmd+P).
4. To print on paper: choose your printer and select Fit to page.

This guide is for study use only. It is a quick reference, not a substitute for the full NEC codebook or official exam preparation materials.