Pass Your Trade Exam the First Time
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Each test draws 25 questions, shuffles every attempt and grades at the real 70% pass mark.
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Every explanation cites eCFR, EPA.gov or the state board behind it.
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Licensing, Mapped Out
Clear guides to electrician, plumbing and HVAC licences, with the official board for each step.
- Electrician Exam Guides: journeyman, master and NEC tips.
- Plumbing License Guides: exams, codes and the path to licence.
- HVAC Licensing Guides: state rules and how they fit with EPA 608.
Popular Guides
- How to Get EPA 608 Certified Online
Choose a program, book a proctored test and get your card, step by step.
- How to Study for the EPA 608 Exam
A practical two-week plan with what to memorise for each section.
- Recover vs Recycle vs Reclaim Refrigerant
The legal definitions of the three Rs and when refrigerant can be reused.
- Journeyman vs Master Electrician Exam
Eligibility, topics and difficulty compared, with Texas as an example.
- Plumbing License Exam Overview
Formats, code topics and how to prepare for journeyman and master.
- EPA 608 vs State HVAC License
Federal refrigerant certification vs state licensing, side by side.
Take a Free Test in Two Minutes
Start with Core. It’s required for every EPA 608 certificate.