Clean Truck Check Credentialed Tester

Clean Truck Check in Santa Maria, CA

24 credentialed testers in Santa Maria.

Testers in Santa Maria

View Coast Diesel Service details

Coast Diesel Service

Carlos Herrera

1104 Via Pavion

Santa Maria, California

(805) 310-1182

MobileOBDOVIOVI tests are required for 2012 and older enginesMotor Home

Trucking activity in Santa Barbara 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
121
Trucking employees
1,022

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

Air quality context in and around Santa Maria

Annual aggregate readings from EPA Air Quality System monitors within about 25 miles of Santa Maria, 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
5.39 Micrograms/cubic meter (LC)
6 monitors · 68,850 observations · 36 days above standard
Nitrogen dioxide (NO₂)
2.34 Parts per billion
3 monitors · 47,978 observations · 0 days above standard
Ozone (O₃)
0.04 Parts per million
7 monitors · 213,610 observations · 8 days above standard

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