DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Mobile Drug & Alcohol Testing in Riverside, California
On-site DOT-compliant collections at Inland Empire logistics mega-campuses, March Air Reserve Base defense contractor sites, Amazon RIV1 and RIV2 fulfillment centers, and UPS hub facilities.
On-site DOT-compliant collections at Inland Empire logistics mega-campuses, March Air Reserve Base defense contractor sites, Amazon RIV1 and RIV2 fulfillment centers, and UPS hub facilities. Riverside anchors warehousing & logistics (fmcsa), defense contracting (dod), aviation / air reserve (faa) employer demand — including Amazon RIV1 / RIV2 Fulfillment Centers; UPS Inland Empire Hub; March Air Reserve Base; Skechers USA Distribution, 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 Riverside-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 Riverside Employers Need Mobile Testing
Inland Empire mega-warehouse on-site testing — collections at dock doors and driver break areas for large CDL fleets
Amazon RIV1/RIV2 CDL fleet pre-employment surge testing during peak hiring and holiday season
program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections
Industries We Serve in Riverside
Amazon RIV1 / RIV2 Fulfillment Centers
Amazon RIV1 / RIV2 Fulfillment Centers — CDL last-mile delivery 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 Riverside market.
UPS Inland Empire Hub
UPS Inland Empire Hub — CDL package car and feeder 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 Riverside market.
March Air Reserve Base
March Air Reserve Base — Air Force Reserve/Army Reserve DOD contractor Non-DOT (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 Riverside market.
Skechers USA Distribution
Skechers USA Distribution — CDL private 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 Riverside market.
BNSF/UP Inland Empire intermodal connections
BNSF/UP Inland Empire intermodal connections — FRA covered service (FRA-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 Riverside market.
Prologis Inland Empire
Prologis Inland Empire — mega-campus logistics park tenant CDL fleets (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 Riverside market.
Applicable Regulations
Employers in Riverside commonly coordinate testing under:
- 49 CFR Part 40 — DOT collection and laboratory procedures
- 49 CFR Part 382 — FMCSA CDL warehousing, fulfillment, and logistics carrier fleets
- 49 CFR Part 219 — FRA covered service BNSF/UP Inland Empire connections
- DOD contractor drug-free workplace requirements for March ARB contractor workforce
- California Labor Code §§ 1025–1028 — employer drug-free workplace programs
- California AB 2188 — federal DOT and DOD preemption for safety-sensitive roles
Testing Services Available in Riverside
We coordinate the following collections for Riverside-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 Riverside
March Air Reserve Base DOD contractor drug-free workplace collections coordinated with facility access
Multi-site random pool management across Riverside County logistics park campuses
24/7 post-accident response for logistics and warehouse CDL incidents throughout Riverside County
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
We have three fulfillment centers in Riverside County — can you manage testing across all sites?
Yes. We coordinate multi-site random pool scheduling and on-site collections across multiple Inland Empire fulfillment center locations. A single call to (219) 315-0345 coordinates collections at all your Riverside County facilities.
How do you handle Amazon peak season CDL hiring surges in Riverside?
We can mobilize on-site at Amazon RIV1, RIV2, or any Inland Empire facility during peak hiring to process large batches of pre-employment CDL collections efficiently — helping you clear drivers before their first scheduled dispatch.
Do you serve March Air Reserve Base contractor employers?
We coordinate with your March ARB contractor program manager to arrange collector access under base security protocols, supporting your DOD contractor drug-free workplace program requirements.
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 Riverside-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.