for Georgia's Vehicle Emissions Inspection & Maintenance (I/M) Program.

stations & inspectors

Phase V


Welcome to the information page for the Phase V upgrade.

Georgia’s Clean Air Force (GCAF) has released a required Phase V software and hardware upgrade for all testing equipment. 

Phase V: Update

Worldwide - Beta testing completed on April 12, 2016. Worldwide stations may upgrade at this time. Upgrades should be complete by October 31, 2016.

Opus/ESP  – Beta testing completed on June 27, 2016. Opus/ESP stations may upgrade at this time. Upgrades should be complete by October 31, 2016.

Bosch/SPX - Beta testing completed on July 11, 2016. Bosch/SPX stations may upgrade at this time. Upgrades should be complete by October 31, 2016.

All Opus customers and Worldwide customers with dynamometers should order their upgrade and complete a passing audit with GCAF by October 31, 2016.

All Phase V upgrades should be complete by October 31, 2016.

It is critically important that you consult with your equipment manufacturers (EMs) now. Please do not wait until the last minute to order your Phase V upgrade as you may miss the October 31, 2016 deadline. You should order your upgrade, in addition to completing a passing audit with GCAF, by that date.

Please contact your equipment manufacturer with any questions regarding equipment and pricing. GCAF, nor the Georgia Environmental Protection Division (EPD), have this information.

Please be certain to read GAS messages, as we continue to announce important dates and station requirements for Phase V.


New! Phase V – I/M Program Software/Hardware Update (Sept. 19, 2016) 

New Phase V Software Version Available for Worldwide and Bosch Customers (Aug. 5, 2016)

All Equipment Manufacturers Now Available for Upgrade to Phase V – Stations Should Upgrade by Oct. 31

Phase V Internet Requirements

Update to Available Upgrades for Phase V: Opus/ESP Completes Beta Testing 

Phase V Update/Open Houses Announced

Phase V Update GAS Message (April 15, 2016)

Steps to Take for Station Analyzer Upgrades or Purchases for Phase V Compliance

Phase V – Instructions for Station Owners/Managers

January 2016 Question and Answer (Q&A) Document

GAS Message: Steps and Timeline for Phase V

November 2015 Phase V Update

Requirements for the Phase V Equipment Upgrade

Phase V GAS Message Announcement

List of Equipment Manufacturers (EMs)


Please reference this page and all GAS messages for any announcements or updates.