Vehicle Idling

Starting Point: In early 2011, there was no Idle Free Ordinance in effect in Salt Lake City. In November, 2011, Salt Lake City Council unanimously adopted Idle Free Ordinance 12.58.030.

2015 Target: General compliance with Salt Lake City's Idle Free Ordinance. Reduce 365,966 pounds of carbon dioxide, carbon monoxide, nitrogen oxide, volatile organic compounds, and particulate matter (PM 2.5 and PM 10) from the air.

Update: UCAIR's education grant program is supporting increased educational outreach and ordinance awareness. Over 50 businesses have posted Idle Free signs on their property since the ordinance took effect. New signs are continuously being distributed to schools, businesses, and public places. If you are a business interested in posting signs, please visit In 2015, there were 84 idling complaints/calls for enforcement and 18 warnings issued.

Target: On track.