White Diamond Tester
Jose Ernesto Mendoza Robles
42 credentialed testers in San Jose.
Jose Ernesto Mendoza Robles
Jose Uribe
juan VILLANUEVA
Lazaro Garcia
Lukasz Kosewski
Marco Montero
Marco Valencia
marixza MARTINEZ
Mary Le
Clean Truck Check applies to heavy-duty vehicles that operate in California — including out-of-state trucks based here that run loads west.
Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.
OpenStreetMap-tagged truck stops, services areas, and HGV-marked fuel stations within 25 miles of San Jose. Useful for routing a service stop around your CTC test.
Source: © OpenStreetMap contributors. Last updated 2026-05-18.
Annual aggregate readings from EPA Air Quality System monitors within about 25 miles of San Jose, 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.
Source: EPA Air Quality System (AQS) API. Reporting year 2025. Last fetched 2026-05-18.