What ASE Certification Is and Why Mechanics Pursue It

ASE certification is a credential issued by the National Institute for Automotive Service Excellence that shows you have passed a standardized test in a specific area of vehicle repair. It does not may provide a job or a raise, but many shops require it before they will hire you for certain positions, and some customers specifically ask for ASE-certified technicians. The credential is valid for five years, then you must renew it by passing the test again or by earning continuing education credits.

ASE offers separate certifications in nine different areas: engine repair, automatic transmissions, manual drivetrains, suspension and steering, brakes, electrical systems, heating and air conditioning, engine performance, and light vehicle diesel engines. You do not have to earn all nine — most mechanics start with one or two in the areas where they already have hands-on experience. Some shops will not hire you without at least one certification; others do not require it at all.

Key Takeaways

  • You must have at least two years of hands-on work experience in the area you want to test in before you can sit for an ASE exam, though some experience can be replaced by formal training.
  • Each ASE test costs between $150 and $200 and covers about 40 to 80 multiple-choice questions specific to one repair area.
  • You register and pay for tests through the official ASE website, then take the exam at a testing center — not online and not at your shop.
  • Passing requires a score of roughly 70 percent, and you receive your results when ready after the test ends.
  • Certifications expire after five years and must be renewed either by retesting or by completing approved continuing education hours.

How Much Work Experience You Need Before Testing

ASE requires you to have hands-on experience in the specific area you are testing for. For most certifications, that means two years of full-time work (or the equivalent in part-time hours) doing actual repairs in that category. If you work on brakes, you need two years of brake work. If you work on transmissions, you need two years of transmission work.

You can reduce the experience requirement if you have completed formal training. A one-year ASE-accredited program counts as one year of the two-year requirement, so you would only need one additional year of hands-on work. A two-year accredited program counts as two years, meaning you could test when ready after graduation without any shop experience. Community colleges, trade schools, and some manufacturer training programs offer these accredited courses.

When you register for your test, ASE will ask you to document your experience. You will need to provide dates, the name of the shop or employer, and a description of the work you performed. If you cannot meet the experience requirement, ASE will reject your registration and you will not be able to test.

Registering for an ASE Test and Choosing Your Test Date

Go to the official ASE website (ase.com) and create an account. You will enter your name, contact information, and work history. Then you select which test or tests you want to take — you can register for multiple tests at once and take them on the same day or different days, though most people take one at a time.

Each test costs between $150 and $200 depending on the specific certification. You pay when you register. ASE offers testing windows throughout the year — typically in January, April, July, and October — and you choose your test date and location during registration. Tests are held at authorized testing centers, usually in larger towns or cities. You can search for a testing center near you on the ASE website before you register.

After you register, ASE sends you a confirmation email with your test date, time, location, and a candidate ID number. You will need to bring that ID number and a photo ID to the testing center. Registration typically closes about two weeks before the test date, so do not wait until the last minute.

What to Study and How to Prepare

ASE publishes a detailed outline for each test that lists the topics covered and the percentage of questions devoted to each one. For example, the brakes test might allocate 20 percent of questions to hydraulic systems, 30 percent to friction materials, and 15 percent to electronic systems. You can read these outlines free from ase.com and use them to focus your study time on the areas where you are weakest.

Most people study using a combination of the ASE study guides (which you can buy from ASE or from third-party publishers), online practice tests, and YouTube videos from repair channels. Some shops offer study groups or pay for employees to take prep courses. The amount of time you need to study depends on how much hands-on experience you already have — someone who has spent two years doing brake work may only need a few weeks of review, while someone transitioning from a different area may need two or three months.

Practice tests are particularly useful because they show you the format and difficulty of the real exam. Many study guides include practice questions, and some websites offer free or low-cost practice tests. Taking these under timed conditions (the real test is timed) helps you get comfortable with the pace.

Taking the Test and Understanding Your Score

Arrive at the testing center at least 15 minutes early. Bring your photo ID and your candidate ID number. The testing center will check you in, verify your identity, and walk you through the rules — typically you cannot bring notes, phones, or reference materials into the testing room, and you cannot leave and return during the test.

Each ASE test contains 40 to 80 multiple-choice questions and lasts between 45 minutes and two hours depending on the certification. The questions are not all equally difficult — some are straightforward recall, others ask you to diagnose a problem or choose the correct procedure. You answer on a computer, and the system shows you your score when ready after you finish.

A passing score is typically around 70 percent, though the exact cutoff varies slightly by test because ASE adjusts for question difficulty. If you pass, you receive a score report on the spot and ASE mails you a certificate within a few weeks. If you do not pass, the score report tells you which topic areas you scored lowest in, so you know where to focus if you retake the test. You can retake any failed test, but you must wait at least one day before registering again.

After You Pass: Getting Your Certificate and Renewing It

Once you pass an ASE test, your certification is active when ready. ASE mails you a wallet-sized certificate card within two to four weeks. Many shops ask to see this card as proof of certification. You can also print a temporary certificate from your ASE account right after you pass, which you can show to an employer while you wait for the physical card.

Your certification is valid for five years from the date you pass the test. Before it expires, you have two options to renew: retake the test and pass it again, or earn continuing education credits in that certification area. Continuing education credits come from attending manufacturer training, taking online courses, or completing other ASE-approved learning activities. Most mechanics find it easier to retake the test than to hunt for approved continuing education, but some shops offer training that counts toward renewal.

If your certification expires and you do not renew it, you lose the credential and cannot claim to be ASE-certified in that area. You would have to retake the test from scratch to regain it. Some employers do not care if your certification has lapsed, but others will not hire you or will move you to a lower pay grade if your certification expires.

Frequently Asked Questions

Can I test in an area where I have no work experience?

No. ASE requires documented hands-on experience or formal training in the specific area you are testing. If you have never worked on brakes, you cannot test for brake certification. You must complete the required experience or training first, then register with that documentation.

What happens if I fail the test?

You receive a score report showing which topic areas you scored lowest in. You can retake the test after waiting at least one day, but you must pay the full test fee again. Most people who fail study longer the second time and focus on their weak areas, then pass on the retake.

Do I need all nine ASE certifications to work as a mechanic?

No. Most shops hire mechanics with one or two certifications. Some specialized shops (transmission shops, for example) may require certification in their specific area. Check the job postings in your area to see what shops are asking for.

Can I take the test online from home?

No. ASE tests are only offered at authorized testing centers. You must go to a physical location, show photo ID, and take the test on a computer at the center. You cannot take it remotely or at your shop.

How long does it take to get my certificate after I pass?

ASE mails physical certificates within two to four weeks. You can print a temporary certificate from your account when ready after passing, which most employers will accept as proof while you wait for the official card.