EPA 608 vs EPA 609: Which Certification Do You Need?
One covers stationary equipment, the other covers car air conditioning. They are different certifications under different rules, and neither substitutes for the other.
On this page
- The short version
- Which one you need
- Do you need both?
- The overlap that causes confusion
- What neither of them is
- What this means on the job
- Frequently asked questions
- Can I hold both EPA 608 and 609?
- Is 609 easier than 608?
- Which one covers refrigerated trucks?
- Do either of them expire?
- Does 608 or 609 make me a licensed HVAC technician?
- Sources
Both come from the Clean Air Act. Both are about not venting refrigerant. They are not interchangeable, and holding one does not authorize the work covered by the other.
The distinction is simple: 608 is stationary equipment, 609 is motor vehicle air conditioning.
The short version
| Section 608 | Section 609 | |
|---|---|---|
| Covers | Stationary AC and refrigeration | Motor vehicle air conditioning (MVAC) |
| Typical work | Home AC, commercial refrigeration, chillers, walk-in coolers | Car and light truck AC service |
| Structure | Core plus Type I, II and/or III | Single certification |
| Exam | Closed-book and proctored for Core, Type II and Type III | Generally open-book |
| Expiry | Does not currently expire | Does not currently expire |
Which one you need
Section 608 if you maintain, service, repair or dispose of stationary equipment containing regulated refrigerant — residential and commercial air conditioning, refrigeration, heat pumps, chillers. It is also what lets you purchase regulated refrigerant for that work — see what EPA 608 certification is.
Section 609 if you service air conditioning in cars and light trucks. This is the automotive technician's certification.
Do you need both?
Some people genuinely do. An independent shop that services both building AC and vehicle AC needs both certifications, because neither covers the other's equipment.
But most technicians need one. If you have never worked on a vehicle, 609 is not something you are missing.
The overlap that causes confusion
Larger vehicles muddy the picture. Air conditioning on buses, and refrigeration units on refrigerated trucks and trailers, are not always straightforwardly "motor vehicle air conditioning" in the Section 609 sense — transport refrigeration in particular can fall under Section 608 rather than 609.
If your work involves refrigerated transport, do not assume. Confirm which rule applies to the specific equipment before you rely on a certification.
What neither of them is
Neither is an HVAC license. State and local licensing requirements are separate, and a federal refrigerant certification does not satisfy them.
Both are federal requirements about handling refrigerant responsibly — nothing more, and nothing less.
If Section 608 is the one you need, try a free practice test or read how to get certified.
What this means on the job
The practical trigger is what you are about to open. If refrigerant is coming out of a building system, you need 608. If it is coming out of a vehicle, you need 609. Neither certification makes the other unnecessary, and holding one while doing the other's work is a compliance problem regardless of how competent you are.
Refrigerant purchasing follows the same split. Being 608 certified does not entitle you to buy refrigerant intended for motor vehicle air conditioning work, and the reverse is also true.
Frequently asked questions
Can I hold both EPA 608 and 609?
Yes, and independent shops that service both building and vehicle systems commonly do. They are separate exams with separate certifications, and there is no conflict between them.
Is 609 easier than 608?
Generally yes. Section 609 is a single certification, usually open-book, and covers a narrower body of material. Section 608 is four sections with closed-book proctoring required for Core, Type II and Type III.
Which one covers refrigerated trucks?
It depends on the equipment. Air conditioning for the cab is motor vehicle air conditioning, but the transport refrigeration unit keeping the cargo cold is often treated as stationary equipment under Section 608. Confirm the specific unit rather than assuming.
Do either of them expire?
Neither currently expires. Both are one-time certifications with no renewal requirement.
Does 608 or 609 make me a licensed HVAC technician?
Neither. They are federal refrigerant-handling certifications. State and local HVAC licensing is a separate requirement and is not satisfied by either one.
Sources
Notice
Get EPA 608 is an independent study aid. It is not affiliated with, endorsed by, or approved by the U.S. Environmental Protection Agency, the ESCO Institute, Mainstream Engineering, or HVAC Excellence.