Clean Truck Check in Stockton, CA

Trucking activity in San Joaquin 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

956

Trucking employees

10,145

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

• Flying J Travel Center
  Flying J · HGV: yes · ~7 mi
  View on OpenStreetMap →
• Flying J Travel Center
  Flying J · HGV: yes · ~12 mi
  View on OpenStreetMap →
• Love's Travel Stop
  Love's · HGV: yes · ~12 mi
  View on OpenStreetMap →
• Flying J Travel Center
  Flying J · HGV: yes · ~16 mi
  View on OpenStreetMap →
• Love's Travel Stop
  Love's · ~16 mi
  View on OpenStreetMap →
• Boyd Service Center
  ~17 mi
  View on OpenStreetMap →

+5 more within 25 miles.

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

Air quality context in and around Stockton

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

8.22 Micrograms/cubic meter (LC)

3 monitors · 34,156 observations · 128 days above standard

Nitrogen dioxide (NO₂)

6.92 Parts per billion

3 monitors · 48,944 observations · 0 days above standard

Ozone (O₃)

0.04 Parts per million

4 monitors · 125,008 observations · 2 days above standard

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