DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Mobile Drug & Alcohol Testing in Ontario, California
On-site DOT-compliant collections at ONT Airport's Amazon Air cargo hub — the largest in the US — FedEx and UPS air cargo ramps, and Ontario's massive Inland Empire industrial warehouse district.
On-site DOT-compliant collections at ONT Airport's Amazon Air cargo hub — the largest in the US — FedEx and UPS air cargo ramps, and Ontario's massive Inland Empire industrial warehouse district. Ontario anchors aviation & air cargo (faa), warehousing & logistics (fmcsa), rail & intermodal (fra) employer demand — including Amazon Air ONT2; FedEx Express ONT; UPS Airlines ONT; Southern California Edison, 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 Ontario-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 Ontario Employers Need Mobile Testing
ONT Airport FAA safety-sensitive collections at Amazon Air, FedEx, and UPS cargo ramp facilities
Inland Empire warehouse district on-site testing — CDL fleet pre-employment and random pool management
program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections
Industries We Serve in Ontario
Amazon Air ONT2
Amazon Air ONT2 — largest Amazon Air hub in US, FAA safety-sensitive ramp and cargo (FAA-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 Ontario market.
FedEx Express ONT
FedEx Express ONT — air cargo ramp FAA safety-sensitive employees (FAA-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 Ontario market.
UPS Airlines ONT
UPS Airlines ONT — air cargo ground handling FAA covered employees (FAA-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 Ontario market.
Southern California Edison
Southern California Edison — PHMSA-adjacent transmission corridor contractors (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 Ontario market.
UP City of Industry Intermodal
UP City of Industry Intermodal — FRA maintenance-of-way 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 Ontario market.
Prologis / DCT Industrial Ontario
Prologis / DCT Industrial Ontario — mega-warehouse tenant CDL carrier 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 Ontario market.
Stater Bros. Markets Distribution
Stater Bros. Markets Distribution — private CDL grocery 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 Ontario market.
Applicable Regulations
Employers in Ontario commonly coordinate testing under:
- 49 CFR Part 40 — DOT collection and laboratory procedures
- 14 CFR Part 120 — FAA safety-sensitive air cargo and aviation employees
- 49 CFR Part 382 — FMCSA CDL warehousing and distribution carrier fleets
- 49 CFR Part 219 — FRA covered service UP City of Industry intermodal
- California Labor Code §§ 1025–1028 — employer drug-free workplace programs
- California AB 2188 — federal FAA preemption for aviation safety-sensitive roles
Testing Services Available in Ontario
We coordinate the following collections for Ontario-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 Ontario
UP City of Industry intermodal FRA covered-service collections for maintenance-of-way employees
Multi-employer air cargo employer random pool coordination at Ontario International Airport
24/7 post-accident response for air cargo, logistics, and intermodal incidents in San Bernardino 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
What FAA requirements apply to Amazon Air and FedEx cargo employees at ONT Airport?
14 CFR Part 120 requires drug and alcohol testing for FAA safety-sensitive functions including flight crewmembers, ground security coordinators, and certain cargo handling roles. We coordinate FAA-compliant on-site collections at ONT cargo ramp facilities under your existing program.
Can you test both our air cargo ramp crew and our CDL delivery fleet in the same visit?
Yes. We collect for FAA-regulated air cargo employees and FMCSA-regulated CDL delivery drivers in a single on-site visit, maintaining separate FAA and DOT chain-of-custody documentation for each regulated employee group.
We have a large warehouse in Ontario's industrial district. How do you handle large random pools?
We manage random selection notifications, scheduling, and on-site collections for large CDL and non-DOT warehouse pools. Contact us to set up a standing random program for your Ontario facility.
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 Ontario-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.