EPA 608 Certification Lookup: How to Verify a Technician or Prove Your Own

Why there is no single EPA 608 database

EPA tests no one and issues no cards, so it holds no master list. Its questions-and-answers page for technicians says so directly: "The EPA does not maintain a database of all certified technicians. Testing organizations keep track of who they certify." Each EPA-approved certifying program must keep records of the names and addresses of everyone it tests, their scores, and the dates and locations of each test, indefinitely unless the records are transferred to another program or to EPA (Appendix D to 40 CFR Part 82, Subpart F).

So an EPA 608 lookup is always a lookup at one program. The first job is finding out which one.

What a certifying program's online list shows

Since January 1, 2018, every certifying program except federally run ones must publish online a list of all technicians it has certified on or after January 1, 2017, and update it at least once a year (40 CFR 82.161(b)(6)). The rule fixes what the list contains:

Programs must tell technicians their information will be published and must let them opt out. The rule does not set a format, so each program chooses its own. ACCA, for example, posts its list as a searchable page headed "ACCA Section 608 Certified Technicians." The certification number on the card is not one of the required fields.

How to look up an EPA 608 certification, step by step

1. Read the card. Appendix D requires every wallet card to show the certifying program's name and its EPA approval date, the technician's name, the certification type, and a unique number that is not a Social Security number.
2. Check the program on EPA's list. EPA's list of certification programs (updated October 27, 2026) shows programs that test today. EPA keeps a separate list of programs that no longer test, and says certifications they issued while approved are still valid.
3. Search the program's published list for certifications from 2017 on, by name and city.
4. Ask the program directly for older certifications, for anyone not on the list, or when you need confirmation of a specific card number. The program holds the test records.

Employers checking a new hire can ask for a copy of the card as well. A technician has to keep one at their place of business anyway (40 CFR 82.161(a)(4)).

Why a certified technician may not appear in a lookup

• Certified before 2017. The publication rule covers certifications on or after January 1, 2017 only
• Opted out. The rule lets technicians keep their names off the list
• Federally run program. Federal programs, such as the military training programs on EPA's list, are excluded from the publication rule
• Not updated yet. Lists need to be updated only once a year, so a recent certification may not show
• The program closed. A program that stops testing must forward its records to another approved program, or to EPA if none will take them (Appendix D). EPA's lost-card steps point technicians from closed programs to EPA's list of closed programs and to EPA itself
• A different name or city. The list records the city of residence at the time of the test, and a technician's name may have changed since

A missing name is not proof that a certification does not exist, and a listed name is not proof that the person in front of you is that technician. When it matters, confirm with the program.

What counts as proof of EPA 608 certification

For buying refrigerant. Sellers must verify that the buyer is certified, or employs a certified technician. EPA's questions-and-answers page lists acceptable documentation as a copy of the technician's certification card, a certificate issued by the certification program, or, for an employer, documentation that it currently employs a certified technician. Sellers keep invoices with the purchaser's name, date and quantity, and keep employers' documentation, for three years (40 CFR 82.154(c)(3)). The card also limits what can be bought: EPA's sales restriction page says individuals may only buy refrigerant consistent with the appliances their certification covers.

On the job. EPA does not require you to carry your card while servicing equipment, but its Q&A notes that customers may ask and suggests keeping a photo of the card on your phone.

If someone uses your card. EPA's Q&A advises telling your refrigerant supplier that the person is not your employer or employee and is not buying for your use, and you can report possible violations to EPA.

If you are hiring and a candidate's record cannot be found anywhere, the certification may need to be earned again. A new hire preparing for Core and a type can compare planned EPA 608 access for a new hire's study window, marked "At launch" with checkout not yet open.

If you are the technician: keeping your EPA 608 record usable

• Know your program. Your program's name is on your card, and it is the only place that can confirm or replace it. EPA's Q&A suggests old receipts, study materials, employers, refrigerant suppliers, state licensing offices or classmates if you have forgotten which program certified you
• Replacing a lost card. The program that certified you replaces it, and EPA's lost-card page lists ESCO Institute and Ferris State University as willing to issue a new card from proof of passing if your program is no longer in business. ACCA, as one program's example, charges a $25 service fee for a replacement and replaces only cards from its own or Pennsylvania College of Technology exams. The EPA 608 cost guide walks through EPA's lost-card steps
• No renewal. EPA's requirements page says Section 608 credentials do not expire, so an old card from an approved program is still valid
• Adding a type. A new type is a new test and a new entry in a program's records. If you are adding Type II or Type III, you can see the sections planned in full EPA 608 prep before you add a type

If no proof of your certification survives at all, EPA's lost-card page says the last step is to retake the test. The order of steps is in the how to get EPA 608 certified guide, and the free EPA 608 practice questions show quickly how much has stayed with you.

For a structured refresh before that retest, planned EPA 608 prep for retaking Core and your type is listed at launch, and the free EPA 608 retake planner builds a weekly schedule now.