Clean Truck Check Credentialed Tester

Clean Truck Check in Salt Lake City, UT

10 credentialed testers in Salt Lake City.

Testers in Salt Lake City

Trucking activity in Salt Lake County

Clean Truck Check applies to heavy-duty vehicles that operate in California — including out-of-state trucks based here that run loads west.

Trucking establishments
541
Trucking employees
11,722

Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.

Nearby truck stops

OpenStreetMap-tagged truck stops, services areas, and HGV-marked fuel stations within 25 miles of Salt Lake City. Useful for routing a service stop around your CTC test.

+8 more within 25 miles.

Source: © OpenStreetMap contributors. Last updated 2026-05-18.

Air quality context in and around Salt Lake City

Annual aggregate readings from EPA Air Quality System monitors within about 25 miles of Salt Lake City, reporting year 2025. Clean Truck Check exists to reduce real-world emissions from heavy-duty vehicles — the numbers below are the local baseline those rules are designed to improve.

PM2.5
6.5 Micrograms/cubic meter (LC)
11 monitors · 174,362 observations · 209 days above standard
Nitrogen dioxide (NO₂)
15.05 Parts per billion
11 monitors · 223,666 observations · 0 days above standard
Ozone (O₃)
0.05 Parts per million
12 monitors · 395,425 observations · 68 days above standard

Source: EPA Air Quality System (AQS) API. Reporting year 2025. Last fetched 2026-05-18.