Get in touch
Especially useful
- A question you think is wrong. Every question is written against the published outline and checked, but the material is technical and the regulation changes. Tell us the question and why, and we will check it against the source and correct it.
- An out-of-date testing organisation. The directory is compiled from EPA's own list. If a program has moved, closed, or changed what it offers, EPA's page is authoritative and we will re-sync.
- A figure that does not match the CFR. We cite the section for every regulatory number precisely so this is checkable. If a citation does not say what we claim, that is a bug and we want it.
What we cannot help with
- Registering you for an exam, or issuing a certificate. We are not a certifying organisation. Exams are administered only by EPA-approved programs, and your card comes from whichever one tested you.
- Replacing a lost card. That comes from the organisation that certified you, not from us and not from EPA directly.
- Telling you whether you will pass. Practice scores measure you against this question set, nothing more.
HVAC Exam Lab is an independent study resource. It is not affiliated with, endorsed by, or approved by the U.S. Environmental Protection Agency or any EPA-approved certifying organization. All practice questions are original and written against the exam blueprint published in federal regulation (40 CFR Part 82, Subpart F, Appendix D). Section 608 certification exams are administered only by EPA-approved certifying organizations.