What is ASE?

ASE, is short for the National Institute for Automotive Service Excellence. Since 1972 our independent non-profit organization has worked to improve the quality of vehicle repair and service by testing and certifying automotive professionals.

What Does ASE Do?

ASE promotes excellence in vehicle repair, service and parts distribution. Almost 300,000 Automotive Technicians and Service Professionals hold ASE Certifications. ASE Certified Professionals work in every part of the automotive service industry. ASE certifies automotive technicians and service professionals, not the auto shops.

Why Does ASE Exist?

To protect the automotive service consumer, shop owner, and the automotive technician. We test and certify automotive professionals so that shop owners and service customers can better gauge a technicians level of expertise before contracting the technician’s services. We certify the automotive technician professional so they can offer tangible proof of their technical knowledge. ASE Certification testing means peace of mind for auto service managers, customers.

How Does ASE Certification Work?

In addition to passing an ASE Certification test, automotive technicians must have two years of on the job training or one year of on the job training and a two-year degree in automotive repair to qualify for certification.

The tests are challenging. Only two out of every three test-takers pass on their first attempt. To remain ASE certified, professionals must retest every five years to keep up with ever-advancing automotive technology.

Who Writes The ASE Certification Tests?

ASE Certification tests are written in workshops by a national panel of seasoned automotive industry professionals and executives, including working technicians, automobile manufacturers, aftermarket manufacturers, and educators. Not by any single person at ASE.

Exams are segmented by sub-specialty such as automobile, medium/heavy truck, truck equipment, school bus, collision repair, and more. There are 40-plus exams each designed to discern the automotive service technician’s knowledge of job-related skills.

ASE at a Glance

Learn about ASE, how certification works - and why it matters.


Facts and figures about ASE's more than 300,000 certified pros and their specialties.


How to display ASE logos in print and on your website.


Register for tests
Check your ASE status
View test results
and more.

ASE Certification Test Registration

To register for an ASE Test please click the Register Now! link here.
To find a test center near you please click the Find a Test Center link here.

Where is ASE?

ASE is located in Leesburg, Virginia, near Washington D.C. Our Customer Service department is available to answer any questions about our organization. ASE is open from 8:00am to 5:00pm, EST, Monday through Friday, except holidays.

Automotive Service Excellence
1503 Edwards Ferry Rd, N.E. Suite 401
Leesburg, Virginia 20176
703-669-6609 Customer Service
800-390-6789 Customer Service Toll Free
703-669-6122 Fax
Customer Service Email contactus@ase.com