Clean Truck Check in Discovery Bay, CA

Trucking activity in Contra Costa 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

304

Trucking employees

1,687

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 Discovery Bay. Useful for routing a service stop around your CTC test.

• Boyd Service Center
  ~15 mi
  View on OpenStreetMap →
• Flying J Travel Center
  Flying J · HGV: yes · ~18 mi
  View on OpenStreetMap →
• Flying J Travel Center
  Flying J · HGV: yes · ~19 mi
  View on OpenStreetMap →
• Love's Travel Stop
  Love's · HGV: yes · ~19 mi
  View on OpenStreetMap →

+4 more within 25 miles.

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