What ASE Certification Is and Who Issues It
ASE (Automotive Service Excellence) certification is a credential that shows you have passed a test in a specific area of vehicle repair or service. ASE is run by the National Institute for Automotive Service Excellence, a nonprofit organization that has been testing mechanics and technicians since 1972. The organization does not train you — it only tests what you already know and issues a certificate if you pass.
ASE offers tests in nine different vehicle systems: engine repair, automatic transmissions, manual drivetrains, suspension and steering, brakes, electrical systems, heating and air conditioning, engine performance, and light vehicle diesel engines. You can take one test or all nine. Each test covers real-world repair scenarios and diagnostic procedures that technicians actually use on the job.
Passing all nine tests and meeting work experience requirements earns you the title of ASE Certified Master Technician. Many shops display ASE-certified technicians' names and certifications in the waiting area or on their website, because the credential tells customers that the person working on their car has demonstrated competence in a standardized way.
Key Takeaways
- ASE certification requires passing a test in one or more vehicle repair specialties, with each test covering real diagnostic and repair procedures.
- You must have hands-on work experience in the field before you can take an ASE test — the amount varies by specialty but typically ranges from two to five years.
- Tests are offered year-round at testing centers, and you receive your score when ready after completing the exam.
- ASE certification is not required by law to work as a mechanic, but many employers prefer or require it, and some states use it as part of their licensing process.
- Certifications expire every five years, and you must retake the test to renew, though some states allow continuing education as an alternative.
Work Experience Requirements Before You Can Test
ASE does not let you walk in and take a test without first working in the field. The amount of experience you need depends on which test you want to take. For most specialties — engine repair, transmissions, brakes, electrical systems, and others — you need two years of hands-on work experience as an automotive technician. For some tests, like light vehicle diesel engines, the requirement is the same.
If you have a high school diploma or equivalent and completed a formal automotive training program at a school or community college, ASE will count one year of that training as one year of work experience. This means you could potentially take a test after one year of school plus one year of actual shop work, rather than waiting the full two years.
You do not need to work at the same shop the whole time, and you do not need a supervisor to sign off on your hours. ASE trusts you to report your experience honestly when you register for the test. However, if you are selected for a random audit, you may be asked to provide documentation of your work history.
How to Register and Schedule Your Test
You register for ASE tests through Pearson VUE, the testing company that administers the exams. You can register online at the Pearson VUE website or by phone. When you register, you choose which test or tests you want to take, select a testing center near you, and pick a date and time that works for your schedule.
Tests are offered year-round at hundreds of testing centers across the country — usually at community colleges, vocational schools, or testing facilities in your area. You can take one test at a time or multiple tests on the same day if you want to. Each test costs money; the fee varies slightly by region but is typically in the $40 to $50 range per test.
You will need to bring a valid government-issued photo ID to the testing center. You cannot bring study materials, phones, or other devices into the testing room. The test itself is computer-based and takes about 90 minutes to complete.
What the Test Covers and How It Is Scored
Each ASE test contains 40 to 80 multiple-choice questions, depending on the specialty. The questions are based on real repair scenarios — for example, a brake test might ask you to diagnose why a car is pulling to one side when braking, or what the correct procedure is for bleeding a brake system. The questions test both your knowledge and your ability to think through a problem the way you would on the job.
You receive your score when ready after you finish the test. A passing score is typically around 70 percent, though the exact cutoff varies slightly by test. If you pass, you receive a certificate in the mail within a few weeks. If you do not pass, you can retake the test as soon as you want — there is no waiting period between attempts.
Your score report shows which topics you did well on and which ones you struggled with. This information can help you decide what to study if you plan to retake the test, or what areas to focus on in your daily work.
How Long Certification Lasts and How to Renew
ASE certification is valid for five years from the date you pass the test. After five years, your certification expires and you are no longer able to use the ASE credential. To keep your certification active, you must either retake the test before it expires or, in some states, complete a certain number of continuing education hours in that specialty.
Continuing education requirements vary by state. Some states accept any automotive training course; others require courses from specific providers. You will need to check with your state's licensing board or your employer to find out what continuing education options are available to you.
Many technicians choose to retake the test rather than pursue continuing education, because retaking the test keeps your knowledge current and shows that you are still competent in that area. Some employers require their technicians to maintain active ASE certification as a condition of employment.
ASE Certification and State Licensing
ASE certification is not the same as a state license, and it is not required by law to work as a mechanic in any state. However, some states use ASE test scores as part of their licensing process. For example, a state might require you to pass an ASE test in a particular specialty plus pass a state-specific exam in order to become a licensed technician.
A few states — including New York and some others — have their own licensing systems that are separate from ASE. In those states, you can work as a mechanic with a state license but no ASE certification, or you can have both. Check with your state's Department of Motor Vehicles or licensing board to find out what the requirements are in your area.
Many shops and dealerships prefer to hire ASE-certified technicians because the certification gives them confidence that the person has met a national standard. Some shops will not hire someone without at least one ASE certification, while others use it as a bonus or a path to higher pay.
Preparing for the Test
ASE publishes official study guides for each test, available through their website and through major booksellers. These guides walk through the types of questions you will see and cover the main topics on the exam. Many people also use online practice tests, YouTube videos, and training courses offered by vocational schools or online platforms.
The best preparation is a combination of hands-on experience and focused study. Because you must have work experience before you can test, you are already learning the material on the job. Study materials help you fill in gaps and prepare for the specific format and wording of the ASE questions.
Some employers offer study time or pay for training courses as part of their support for technicians pursuing certification. If your shop does not, you can study on your own time using free and paid resources. Many people spend two to four weeks studying before taking a test, though the amount of time varies based on how much experience you have and how familiar you already are with the material.
Frequently Asked Questions
Do I have to get ASE certified to work as a mechanic?
No. ASE certification is not required by law in any state. However, many employers prefer or require it, and some states use ASE test scores as part of their licensing process. You can work as a mechanic without ASE certification, but having it often leads to better job opportunities and higher pay.
Can I take an ASE test if I do not have two years of experience?
Not for most tests. You need two years of hands-on work experience as a technician before you can take an ASE test. If you completed a formal automotive training program at a school, one year of that training counts as one year of experience, so you could test after one year of school plus one year of work.
What happens if I fail an ASE test?
You can retake the test as soon as you want — there is no waiting period. Your score report shows which topics you struggled with, so you can focus your study on those areas before trying again. Most people who fail pass on their second or third attempt.
How much does ASE certification cost?
Each test costs roughly $40 to $50, depending on your region. If you take all nine tests to become a Master Technician, the total cost would be around $360 to $450. Some employers cover the cost of tests for their technicians.
Can I use ASE certification in other countries?
ASE is a U.S.-based organization, and its certification is primarily recognized in the United States. Other countries have their own automotive technician certification systems. If you move to another country, you may need to pursue that country's certification instead.