The following lists the number of professionals currently certified by ASE. The information is accurate through the Spring 2007 ASE test series. It is updated twice a year, after ASE's Spring and Fall test series. ASE certifications are valid for five years, after which time, technicians must retest in order to keep up with changing technology and to remain in the ASE program.
- Automobile Technicians 289,936
- Master Automobile Technicians 95,423
- Automobile Service Consultants 19,044
- Advanced Engine Performance Specialist Technicians 48,750