Clean Truck Check in Temecula, CA

Trucking activity in Riverside 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

1,289

Trucking employees

9,230

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

• Truck-friendly fuel stop
  HGV: yes · ~25 mi
  View on OpenStreetMap →

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

Air quality context in and around Temecula

Annual aggregate readings from EPA Air Quality System monitors within about 25 miles of Temecula, 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

7.3 Micrograms/cubic meter (LC)

3 monitors · 43,172 observations · 35 days above standard

Nitrogen dioxide (NO₂)

11.49 Parts per billion

3 monitors · 50,304 observations · 0 days above standard

Ozone (O₃)

0.05 Parts per million

6 monitors · 189,705 observations · 142 days above standard

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