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Centralized emission testing through nine stations, and mobile testing.
Envirotest, an Opus company, provides the Tennessee Department of Environment and Conservation (TDEC) with a complete centralized vehicle emission testing network in Hamilton, Rutherford, Sumner, Williamson and Wilson Counties. We operate nine inspection stations with 25 lanes and two mobile units.
Services include data management, as well a range of tests including on-board diagnostic (OBD), idle, opacity and gas cap. The program performs 1.1 million vehicle emissions tests each year.
Find out more about the Tennessee (TDEC) program
Opus’ response to TDEC's Noninterference Demonstration
The Tennessee Department of Environment and Conservation, in response to a legislative directive from the Tennessee General Assembly, conducted analyses to determine whether Tennessee counties that have motor vehicle inspection and maintenance programs can end these programs and still meet the applicable federal air standards in those counties. Opus, based on reports prepared by the independent firm Alpine Geophysics, LLC, disagrees with TDEC’s conclusion that these programs may be terminated. Alpine’s report is attached.
Following is the link to TDEC’s two public hearings on this issue: https://www.tn.gov/environment/ppo-public-participation/ppo-public-participation/ppo-air.html. Both notices are under the October 18, 2019 date heading; one is for Hamilton County and the other is for Davidson and surrounding counties. Each of the two notices contains the “Notice of Hearing” and the “Demonstration of I/M Removal.”
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