The National Institute for Automotive Service Excellence (ASE) certifies mechanics and shops in the automotive repair and service industry. ASE was created in 1972 as an independent, non-profit organization. The overall purpose for ASE certification is to help consumers distinguish between potentially incompetent and competent automotive technicians. The goal of the ASE is to improve the quality of vehicle repair and service through the testing and certification of repair and service professionals.
ASE exams are administered Prometric Test Centers. Certification requires passing an exam and having required experience. The required experience can be substituted by one year of on-the-job training and a two-year training degree. A recertification track is also offered for those who have had previous certification. Many employers will require that their employees be ASE certified.
For more help, check out the rest of our ASE practice exams.
There are fifteen different Automobile & Light Truck Certifications:
- A1 - Engine Repair Certification
- A2 - Automatic Transmission Certification
- A3 - Manual Drive Train & Axles Certification
- A4 - Suspension & Steering Certification
- A5 - Brakes Certification
- A6 - Electrical Systems Certification
- A7 - Heating & Air Conditioning Certification
- A8 - Engine Performance Certification
- A9 - Light Vehicle Diesel Engine
- C1 - Automobile Service Consultant Certification
- F1 - Compressed Natural Gas Vehicle Certification
- G1 - Auto Maintenance and Light Repair Certification
- L1 - Advanced Engine Performance Specialist Certification
- L3 - Light Duty Hybrid/Electric Vehicle Specialist Certification
- X1 - Exhaust Systems Certification
There are nine different Medium/Heavy Truck Certifications:
- T1 - Gasoline Engines Certification
- T2 - Diesel Engines Certification
- T3 - Drive Train Certification
- T4 - Brakes Certification
- T5 - Suspension and Steering Certification
- T6 - Electrical/Electronic Systems Certification
- T7 - Heating, Ventilation, and Air Conditioning (HVAC) Systems Certification
- T8 - Preventive Maintenance Inspection (PMI) Certification
- L2 - Electronic Diesel Engine Diagnosis Specialist Certification
There are five Collision Repair and Refinish Certifications:
- B2 - Painting and Refinishing Certification
- B3 - Non-Structural Analysis and Damage Repair Certification
- B4 - Structural Analysis and Damage Repair Certification
- B5 - Mechanical and Electrical Components Certification
- B6 - Damage Analysis and Estimating Certification
There are three Parts Specialist Certifications:
- P1 - Med/Hvy Truck Parts Specialist Certification
- P2 - Automobile Parts Specialist Certification
- P3 - General Motors Parts Consultant Certification
There are seven School Bus Certifications:
- S1 - Body Systems and Special Equipment Certification
- S2 - Diesel Engines Certification
- S3 - Drive Train Certification
- S4 - Brakes Certification
- S5 - Suspension and Steering Certification
- S6 - Electrical/Electronic Systems Certification
- S7 - Air Conditioning Systems and Controls
There are eight Transit Bus Certifications:
- H1 - Compressed Natural Gas Engines Certification
- H2 - Diesel Engines Certification
- H3 - Drive Train Certification
- H4 - Brakes Certification
- H5 - Suspension and Steering Certification
- H6 - Electrical/Electronic Systems Certification
- H7 - Heating, Ventilation and Air Conditioning Certification
- H8 - Preventive Maintenance Inspection Certification
There are three Truck Equipment Certifications:
- E1 - Truck Equipment Installation and Repair Certification
- E2 - Electrical/Electronic Systems Installation and Repair Certification
- E3 - Auxiliary Power Systems Installation and Repair Certification
Master Automotive Technician ASE Certification: The Master Technician Certification is earned after all eight (A1-A8) of the specific testing / certifications listed above are passed. To maintain the Master Level, each test must be recertified every five years. Master Technicians are considered experts in automotive repair and service.
Master Medium/Heavy Truck Technician ASE Certification: The Master Technician Certification is earned after all seven (T2-T8) of the specific testing / certifications listed above are passed. To maintain the Master Level, each test must be recertified every five years. Master Technicians are considered experts in medium/heavy truck repair and service.
Master Collision Repair/Refinishing Technician ASE Certification: The Master Technician Certification is earned after all four (B2-B5) of the specific testing / certifications listed above are passed. To maintain the Master Level, each test must be recertified every five years. Master Technicians are considered experts in collision repair and service.
Master School Bus Technician ASE Certification: The Master Technician Certification is earned after all six (S1-S6) of the specific testing / certifications listed above are passed. To maintain the Master Level, each test must be recertified every five years. Master Technicians are considered experts in school bus repair and service.
Master Transit Bus Technician ASE Certification: The Master Technician Certification is earned after all seven (H1 or H2, H3-H8) of the specific testing / certifications listed above are passed. To maintain the Master Level, each test must be recertified every five years. Master Technicians are considered experts in transit bus repair and service.
Master Truck Equipment Technician ASE Certification: The Master Technician Certification is earned after all three (E1-E3) of the specific testing / certifications listed above are passed. To maintain the Master Level, each test must be recertified every five years. Master Technicians are considered experts in truck equipment repair and service.
Advanced Engine Performance Specialist (L1) Certification: This difficult test is focused on the diagnosis of general power-train, computerized power-train controls (including OBD II), ignition systems, fuel and air induction systems, emission control systems, and I/M test failures. Technicians must retest every five years to retain their Advanced Engine Performance Specialist Certification. These Technicians possess knowledge and the skills required to diagnose sophisticated drivability and emissions-related problems on automobiles, SUVs, and light-duty trucks.
Electronic Diesel Engine Diagnosis Specialist (L2) Certification: This difficult test is focused on the diagnosis of sophisticated engine performance problems on computer-controlled diesel engines. Technicians must retest every five years to retain their Electronic Diesel Engine Diagnosis Specialist Certification. These Technicians possess knowledge and the skills required to diagnose sophisticated drivability and emissions-related problems on diesel trucks.
Light Duty Hybrid/Electric Vehicle Specialist (L3) Certification: This difficult test is focused on the diagnosis of both high and low voltage electrical/electronic problems, as well as other supporting system problems, on hybrid/electric vehicles. Technicians must retest every five years to retain their Light Duty Hybrid/Electric Vehicle Specialist Certification. These Technicians possess knowledge and the skills required to diagnose sophisticated drivability problems on hybrid/electric automobiles.
ASE Blue Seal of Excellence Program: ASE's highest honor is the ‘Blue Seal of Excellence’ This specialty seal is only awarded to by ASE to Auto Repair Facilities and Collision Repair Facilities that employ at least 75% of technicians that are ASE certified. Each area of service offered by the facility must be covered by at least one ASE certified technician. If the Repair Facility employs a full-time Service Consultant they must have a current ASE Service Consultant Certification.
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