DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Mobile Drug & Alcohol Testing in Redding, California
On-site DOT-compliant collections for PG&E Northern California gas transmission workers, Sierra Pacific Industries timber CDL operations, Bureau of Reclamation Shasta Dam contractors, and I-5 corridor heavy construction employers.
On-site DOT-compliant collections for PG&E Northern California gas transmission workers, Sierra Pacific Industries timber CDL operations, Bureau of Reclamation Shasta Dam contractors, and I-5 corridor heavy construction employers. Redding anchors pipeline & utilities (phmsa), timber & forest products (fmcsa), construction & heavy civil (fmcsa) employer demand — including PG&E North Valley Gas Transmission; Sierra Pacific Industries; Shasta Dam / Bureau of Reclamation; Caltrans District 2, and related operators across California. For safety-sensitive CDL drivers, pipeline workers, railroad crews, and aviation employees who cannot leave a shift for a clinic visit, mobile collection keeps operations staffed while meeting federal custody requirements.
OnSite Employer Testing coordinates mobile drug testing collections at your Redding-area facility, yard, terminal, or job site. We do not operate a clinic. Review how it works or browse all locations we serve across the region.
Why Redding Employers Need Mobile Testing
PG&E North Valley PHMSA gas transmission collections for pipeline operators across Shasta, Tehama, and Trinity counties
Sierra Pacific Industries timber CDL fleet testing at Redding-area mills and log yards
program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections
Industries We Serve in Redding
PG&E North Valley Gas Transmission
PG&E North Valley Gas Transmission — PHMSA Shasta/Tehama/Trinity county pipeline operators (PHMSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Redding market.
Sierra Pacific Industries
Sierra Pacific Industries — largest US lumber producer, timber CDL fleet FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Redding market.
Shasta Dam / Bureau of Reclamation
Shasta Dam / Bureau of Reclamation — federal contractor hydroelectric operations (Non-DOT-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Redding market.
Caltrans District 2
Caltrans District 2 — North State highway contractor CDL fleets FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Redding market.
Knife River / Graniterock
Knife River / Graniterock — aggregate mining and construction CDL fleet FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Redding market.
Western Pacific Trucking
Western Pacific Trucking — I-5 corridor CDL carrier fleet FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Redding market.
Applicable Regulations
Employers in Redding commonly coordinate testing under:
- 49 CFR Part 40 — DOT collection and laboratory procedures
- 49 CFR Part 382 — FMCSA CDL timber, construction, and transportation fleets
- 49 CFR Part 199 — PHMSA PG&E North Valley gas transmission pipeline operators
- Federal contractor drug-free workplace requirements for Bureau of Reclamation projects
- California Labor Code §§ 1025–1028 — employer drug-free workplace programs
- CalFire/USFS contractor fire season CDL hiring surge considerations
Testing Services Available in Redding
We coordinate the following collections for Redding-area employers:
DOT drug testing collections (FMCSA, FRA, FAA, FTA, PHMSA)
- Pre-employment drug and alcohol testing
- Reasonable suspicion and return-to-duty testing
Breath alcohol testing (BAT certified)
- Oral fluid drug testing
Mobile and on-site collections at your facility, yard, or job site
On-Site Collections in Redding
Bureau of Reclamation Shasta Dam contractor collections meeting federal drug-free workplace requirements
I-5 corridor heavy construction CDL fleet testing during CalTrans District 2 project surges
CalFire and USFS contractor CDL fire season pre-deployment testing
Use our instant quote calculator to scope your collection or visit our service areas page for broader coverage context.
Questions from employers in this region
PG&E PHMSA operations in Northern California are spread across remote counties. Can you reach them?
We serve PG&E pipeline operators across Shasta, Tehama, Trinity, Siskiyou, and Modoc counties — areas where no clinic access exists and PHMSA-compliant on-site mobile collection is the only practical solution.
Sierra Pacific operates timber trucks across rural Northern California roads. How do you manage their random program?
We coordinate random selection scheduling and on-site collections at Sierra Pacific's Redding-area mills and log yards, meeting 49 CFR Part 382 requirements for CDL operators regardless of how remote the operation.
CalFire contracts bring dozens of CDL drivers to Redding for fire season. Can you handle the surge?
Yes. We mobilize on-site at fire crew staging areas and contractor equipment yards during CalFire/USFS fire season pre-deployment to handle large batches of CDL pre-employment and return-to-duty testing quickly.
Core programs: Mobile & on-site drug testing, DOT drug testing, Non-DOT drug testing, Post-accident testing, Reasonable suspicion testing, Random testing programs, Breath alcohol testing. Planning: how it works, instant quote calculator, all locations. Industries: employer industries we support. Long-form answers: Employer drug testing FAQ. Quick questions: Contact us.
For how we think about regions and feasibility, see service areas.
Nationally coordinated collection support
OnSite Employer Testing is headquartered in Illinois and coordinates mobile and on-site employer testing across selected regions and employer locations—including through partner collectors when your program, timing, and geography allow. Availability depends on location, timing, test type, site access, collector availability, and scheduling needs.
Scope collections for your Redding-area operation
Share your facility address, expected donor count, test reason, and DOT or non-DOT status — we confirm what is workable and send a written proposal.