FAA · FMCSA · FRA · ON-SITE EMPLOYER TESTING
Yonkers, NY Mobile Drug & Alcohol Testing
Metro-North FRA · I-87 Thruway FMCSA · Hudson River Industrial · Westchester County — Mobile collections at NYC's northern gateway.
Yonkers is New York State's fourth-largest city and the southern anchor of Westchester County — directly connected to the Bronx and Manhattan, with Metro-North's Hudson and Harlem lines running through its core. The I-87 New York Thruway approach and the Saw Mill River Parkway carry heavy CDL and commercial traffic northbound from NYC. Yonkers' Hudson riverfront hosts industrial and manufacturing operations. The surrounding Westchester County employer base includes a dense pharmaceutical, technology, and corporate headquarters cluster. OnSite Employer Testing covers all of Westchester County from Yonkers.
OnSite Employer Testing coordinates mobile drug testing collections at your Yonkers-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.
Westchester's Industrial Gateway to New York City
DOT & Non-DOT Testing Services — Yonkers
We coordinate the following collections for Yonkers-area employers:
- FRA 49 CFR Part 219 — Metro-North Hudson Line and Harlem Line operating crews and maintenance-of-way employees based in or operating through Yonkers
- FMCSA 49 CFR Part 382 — CDL drivers on I-87 Thruway, I-287, and US-9 serving Westchester County and Hudson Valley freight
- Pre-employment, Random, Reasonable Suspicion, Post-Accident — urine, oral fluid, and EBT
- DOT Return-to-Duty & Follow-Up — SAP-supervised employees
- Pharmaceutical and corporate sector testing — Westchester County pharma and biotech corridor
- Construction sector — Yonkers waterfront redevelopment projects
- New York MRTA Compliance — Cannabis Law § 137 does NOT protect DOT safety-sensitive employees
- Healthcare testing — Montefiore Health System, St. John's Riverside Hospital
Industries Served in Yonkers
- Transit — Metro-North Hudson and Harlem Lines
- CDL freight — I-87 Thruway, Westchester County corridors
- Pharmaceutical and biotech — Westchester County corporate campus sector
- Manufacturing — Hudson riverfront industrial
- Healthcare — Montefiore, St. John's Riverside
- Construction — Yonkers waterfront and Westchester growth
- Retail and distribution — I-287 corridor
Applicable Regulations — Yonkers, NY
FRA 49 CFR Part 219 governs Metro-North operating and MOW crews throughout Westchester County. FMCSA 49 CFR Part 382 applies to CDL fleets on I-87 and I-287. New York MRTA Cannabis Law § 137 does not affect DOT testing. Program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections.
On-Site Collections in Yonkers
Metro-North, I-87 Thruway carriers, and Westchester employers — get compliant mobile collections dispatched today.
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
Do you cover the full Westchester County corridor from Yonkers to White Plains?
Yes. Our Yonkers service area covers all of Westchester County — White Plains, Mount Vernon, New Rochelle, Tarrytown, and surrounding communities.
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.
Mobile Testing for Yonkers and Westchester County
Metro-North, I-87 Thruway carriers, and Westchester employers — get compliant mobile collections dispatched today.