sohil sepidehdam
OBDMotor Home
Clean Truck Check in Oxnard, CA
24 credentialed testers in Oxnard.
Testers in Oxnard
J.J.'s Smog
Thanongsang Somchid
MobileOBDOVIOVI tests are required for 2012 and older enginesMotor Home
Conley Clean Truck Check
Tim Conley
MobileOBDOVIOVI tests are required for 2012 and older enginesMotor Home
Victor Chavez Robles
MobileOBD
Trucking activity in Ventura 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
242
Trucking employees
2,028
Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.
Air quality context in and around Oxnard
Annual aggregate readings from EPA Air Quality System monitors within about 25 miles of Oxnard, 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
5.82 Micrograms/cubic meter (LC)
5 monitors · 56,927 observations · 28 days above standard
Nitrogen dioxide (NO₂)
3.55 Parts per billion
2 monitors · 29,674 observations · 0 days above standard
Ozone (O₃)
0.04 Parts per million
5 monitors · 156,532 observations · 1 day above standard
Source: EPA Air Quality System (AQS) API. Reporting year 2025. Last fetched 2026-05-18.