FEDERAL CONTRACTOR · DOT & NON-DOT EMPLOYER TESTING
Waldorf, MD Mobile Drug & Alcohol Testing
NAS Patuxent River Defense Contractors · I-95/US-301 FMCSA · Charles County — Mobile collections in Southern Maryland.
Waldorf is Charles County's commercial hub — the largest unincorporated community in Maryland and the primary services gateway for NAS Patuxent River (PAX), the Navy's premier aircraft test and evaluation center. The defense contractor community in Southern Maryland is enormous, spanning aviation engineering, electronics, and base support services. I-95 and US-301 carry active CDL freight south of Washington. OnSite Employer Testing covers Charles and Calvert counties.
OnSite Employer Testing coordinates mobile drug testing collections at your Waldorf-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.
Southern Maryland's Defense Contractor and I-95 Logistics Corridor
DOT & Federal Testing Services — Waldorf
We coordinate the following collections for Waldorf-area employers:
- Federal contractor testing — NAS Patuxent River naval aviation test and evaluation contractors; Lockheed Martin, Northrop Grumman, NAVAIR support firms under FAR 52.223-6 and Navy requirements
- FAA 14 CFR Part 120 — Safety-sensitive aviation personnel supporting NAS PAX flight test operations
- FMCSA 49 CFR Part 382 — CDL drivers on I-95, US-301, and MD-5 serving Charles County and Southern Maryland freight
- Pre-employment, Random, Reasonable Suspicion, Post-Accident — urine, oral fluid, and EBT
- DOT Return-to-Duty & Follow-Up — SAP-supervised employees
- Maryland Question 4 Cannabis Compliance — does NOT affect federal contractors or DOT employees
- Construction sector — Charles County rapid growth workforce
- Healthcare testing — University of Maryland Charles Regional Medical Center
Industries Served in Waldorf
- Defense — NAS Patuxent River, NAVAIR contractor community
- Aviation test and evaluation — Lockheed, Northrop, NAVAIR support
- CDL freight — I-95/US-301 Southern Maryland
- Construction — Charles County growth
- Healthcare — UM Charles Regional
- Retail and services — Southern Maryland commercial corridor
Applicable Regulations — Waldorf, MD
Federal contractors at NAS Patuxent River are subject to FAR 52.223-6 and Navy drug testing requirements. FMCSA 49 CFR Part 382 governs I-95/US-301 CDL fleets. Maryland Question 4 does not affect DOT or federal contractor testing. Program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections.
On-Site Collections in Waldorf
NAS PAX River contractors, I-95/US-301 carriers, and Charles County 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 serve NAS Patuxent River defense contractors from Waldorf?
Yes. PAX River contractor employees — across Lockheed, Northrop, NAVAIR support, and smaller firms — are served throughout Charles and Calvert counties.
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 Waldorf's Defense and Southern Maryland Workforce
NAS PAX River contractors, I-95/US-301 carriers, and Charles County employers — get compliant mobile collections dispatched today.