FEDERAL CONTRACTOR · DOT & NON-DOT EMPLOYER TESTING
Baltimore, MD Mobile Drug & Alcohol Testing
Port of Baltimore USCG · BWI Airport FAA · CSX/NS FRA · MTA FTA · FSK Bridge Rebuild — Maryland cannabis law does NOT protect DOT workers.
Baltimore is experiencing one of the most significant port and construction testing demand surges in the country following the 2024 Francis Scott Key Bridge collapse. The FSK Bridge reconstruction project is a multi-year, multi-billion dollar infrastructure program requiring thousands of construction workers — every one of them subject to contractor drug testing requirements. The Port of Baltimore, one of the most auto-import-focused ports in the U.S. (handling nearly 850,000 vehicles annually), resumed full operations and continues to generate active USCG and FMCSA testing demand. BWI Thurgood Marshall Airport is a Southwest Airlines hub with major cargo operations. CSX and Norfolk Southern maintain significant Baltimore facilities. MTA Maryland's bus, light rail, and subway systems add FTA obligations. Maryland's recreational cannabis law (Question 4) does not affect any of these DOT-regulated workforces. OnSite Employer Testing dispatches throughout Baltimore City and Baltimore County.
OnSite Employer Testing coordinates mobile drug testing collections at your Baltimore-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.
America's Comeback Port — And Its Massive Construction Testing Surge
DOT & Non-DOT Testing Services — Baltimore
We coordinate the following collections for Baltimore-area employers:
- USCG 46 CFR Part 16 — Merchant mariners, auto carrier vessel crew, and container terminal workers at Port of Baltimore Seagirt, Dundalk, and South Locust Point terminals
- FAA 14 CFR Part 120 — Pilots, flight attendants, A&P mechanics, dispatchers, ground security coordinators, and ramp/ground handling personnel at BWI Thurgood Marshall Airport — Southwest hub, Amazon Air, and cargo carriers
- FRA 49 CFR Part 219 — CSX and Norfolk Southern engineers, conductors, dispatchers, and MOW employees at Baltimore's Curtis Bay Yard, Bay View Yard, and Camden Yards facilities
- FTA 49 CFR Part 655 — MTA Maryland Light RailLink, Baltimore Metro SubwayLink, and bus safety-sensitive employees
- FMCSA 49 CFR Part 382 — CDL port drayage and auto transport drivers on I-95, I-695, and I-895 serving the Port of Baltimore auto import and container complex
- Pre-employment, Random, Reasonable Suspicion, Post-Accident — urine, oral fluid, and EBT
- DOT Return-to-Duty & Follow-Up — SAP-supervised employees across all modes
- FSK Bridge reconstruction — large-scale construction contractor pre-employment and random programs for the Francis Scott Key Bridge rebuild workforce
- Maryland Question 4 Cannabis Compliance — recreational cannabis law does NOT affect 49 CFR Part 40; marijuana positives remain disqualifying for all DOT safety-sensitive employees
- Auto import and vehicle processing workforce — Port of Baltimore Tier 1 auto processor employees
- Hair follicle and instant-result screening for construction and logistics hiring
Industries Served in Baltimore
- Port and maritime — Port of Baltimore auto import, Seagirt container terminal, auto carrier vessel crew
- Aviation — BWI Thurgood Marshall Airport (Southwest hub, Amazon Air, cargo)
- Railroad — CSX Curtis Bay/Bay View, Norfolk Southern Baltimore
- Transit — MTA Maryland Light Rail, Metro SubwayLink, bus
- Construction — Francis Scott Key Bridge reconstruction, Baltimore infrastructure
- CDL freight — I-95, I-695, I-895 Baltimore beltway corridors
- Healthcare — University of Maryland Medical System, Johns Hopkins Health
- Pharmaceutical and biotech — Baltimore biotech corridor
Applicable Regulations — Baltimore, MD
USCG 46 CFR Part 16 governs merchant mariners at the Port of Baltimore — the East Coast's largest auto import facility. FAA 14 CFR Part 120 applies to BWI safety-sensitive aviation employees. FRA 49 CFR Part 219 covers CSX and NS Baltimore yard employees. FTA 49 CFR Part 655 governs MTA Maryland safety-sensitive workers. FMCSA 49 CFR Part 382 applies to CDL drayage and auto transport fleets. Maryland Question 4 recreational cannabis law does not affect 49 CFR Part 40. Program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections.
On-Site Collections in Baltimore
Port of Baltimore, BWI airport, CSX/NS, MTA Maryland, FSK Bridge construction, and I-95 carriers — 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
Maryland legalized recreational cannabis — does that affect our Port of Baltimore or BWI workers?
No. Maryland's Question 4 recreational cannabis law does not affect federal DOT testing under 49 CFR Part 40. Marijuana positives remain disqualifying for USCG-regulated port mariners, FAA-regulated BWI aviation workers, FRA-regulated CSX/NS rail crews, FTA-regulated MTA workers, and FMCSA CDL drivers.
Can you handle FSK Bridge reconstruction contractor pre-employment testing?
Yes. Large-scale construction contractor onboarding for the Francis Scott Key Bridge rebuild is exactly the type of high-volume program mobile collection is built for. We dispatch multiple collectors to any Baltimore area construction site.
Do you serve the Port of Baltimore auto import complex?
Yes. We coordinate USCG 46 CFR Part 16 and FMCSA collections for auto carrier vessel crew, terminal workers, and vehicle transport drivers at the Port of Baltimore facilities.
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 Baltimore's Port, Airport, Rail, and FSK Bridge Workforce
Port of Baltimore, BWI airport, CSX/NS, MTA Maryland, FSK Bridge construction, and I-95 carriers — get compliant mobile collections dispatched today.