Clean Truck Check Credentialed Tester

Clean Truck Check in Salinas, CA

21 credentialed testers in Salinas.

Testers in Salinas

Trucking activity in Monterey 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
236
Trucking employees
1,219

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 Salinas. Useful for routing a service stop around your CTC test.

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

Air quality context in and around Salinas

Annual aggregate readings from EPA Air Quality System monitors within about 25 miles of Salinas, 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
4.33 Micrograms/cubic meter (LC)
5 monitors · 57,556 observations · 11 days above standard
Nitrogen dioxide (NO₂)
5.4 Parts per billion
1 monitor · 17,070 observations · 0 days above standard
Ozone (O₃)
0.03 Parts per million
4 monitors · 126,678 observations · 0 days above standard

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