Emissions Inspection Program Changes Reviewed

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Some significant changes to the vehicle emissions inspection program took effect in January 2015. For all of those folks whose vehicles didn't require an inspection in 2015, but will in 2016, here are reminders of those changes.

Collectively, the January 2015 changes improved customer convenience for a large number of Coloradans in the program area while continuing to protect air quality.

Among the changes:

  • Extension of the initial model year exemption for newer vehicles from four to seven years. This change reflects improvements in vehicles that allow gasoline-powered engines to start out cleaner and stay cleaner longer.

  • Beginning in the eighth model year and extending through the eleventh model year, the vehicle inspection process will include an inspection of the On-Board Diagnostics (OBD and OBDII) systems. Instead of being tested on the dynamometer (the “treadmill” test), vehicles will be “plugged in” to read the codes in their on-board computers.
    This means if your “Check Engine” light is on, you will not pass the inspection. Don’t ignore it, get it checked!

  • Hybrid vehicles, beginning in the eighth model year, require an OBD inspection. 

  • Two all-wheel drive lanes at every station (except tiny Castle Rock). 
  • Testing to accomodate over and under-sized tires at three emissions inspection stations, Sheridan, Ken Caryl and Ft. Collins.
  • Credit cards are now accepted at all stations!

Find out about all of the changes at https://www.colorado.gov/pacific/cdphe/emissions-testing-changes-2015