Registered Emissions Repair Technicians (Registered Tech) play an important role in the Massachusetts Vehicle Check Program. To become a Registered Tech, you must:


Step 1

Download, print and complete your Registered Emissions Repair Technician application


Step 2

Scan and email your application to Applus:


Mail your application to:

Massachusetts Vehicle Check Program
Applus Technologies, Inc.
787-A Hartford Turnpike
Shrewsbury, MA 01545

Please contact our Customer Service Center at 1-844-358-0135 if you have any questions about registering, the MASS Module exam, or the OBD Diagnostics and Repair Training course.

ASE Certifications

The National Institute for Auto Service Excellence (ASE) tests and certifies automotive service and repair professionals. The tests measure a technician’s knowledge of the skills needed to diagnose problems with computer-controlled engine systems. These skills are extensions of the basic repair and diagnostic skills that are tested on the Automobile Engine Performance (A-8) test. The L-1 and L-2 ASE certifications, required for RERTs, provide even more in depth training related to the emissions control components of vehicles.

For more information, call ASE at 703-669-6600 or visit