FAA · FMCSA · FRA · ON-SITE EMPLOYER TESTING
Mobile Drug & Alcohol Testing in Chattanooga, Tennessee
On-site DOT-compliant collections for Volkswagen's Chattanooga assembly plant CDL supplier and logistics fleet, Wacker Chemie polysilicon PHMSA chemical pipeline operations, Norfolk Southern and CSX FRA rail yard employees, and Chattanooga Metropolitan Airport FAA pilot and crew employer programs.
On-site DOT-compliant collections for Volkswagen's Chattanooga assembly plant CDL supplier and logistics fleet, Wacker Chemie polysilicon PHMSA chemical pipeline operations, Norfolk Southern and CSX FRA rail yard employees, and Chattanooga Metropolitan Airport FAA pilot and crew employer programs. Chattanooga anchors automotive manufacturing (fmcsa/non-dot), chemical & polysilicon (phmsa), rail (fra) employer demand — including Volkswagen Chattanooga; Wacker Chemie Charleston TN; Amazon CHA1 / Chattanooga fulfillment; Norfolk Southern Chattanooga, and related operators across Tennessee. For safety-sensitive CDL drivers, pipeline workers, railroad crews, defense contractors, 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 Chattanooga-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 Chattanooga Employers Need Mobile Testing
Volkswagen Chattanooga CDL inbound supplier parts and outbound vehicle delivery fleet on-site testing
Wacker Chemie PHMSA polysilicon chemical pipeline covered-function operator collections
program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections
Industries We Serve in Chattanooga
Volkswagen Chattanooga
Volkswagen Chattanooga — ID.4/Atlas CDL inbound parts and outbound carrier 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 Chattanooga market.
Wacker Chemie Charleston TN
Wacker Chemie Charleston TN — polysilicon chemical pipeline PHMSA operations (PHMSA-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 Chattanooga market.
Amazon CHA1 / Chattanooga fulfillment
Amazon CHA1 / Chattanooga fulfillment — CDL 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 Chattanooga market.
Norfolk Southern Chattanooga
Norfolk Southern Chattanooga — FRA covered-service railroad employees (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 Chattanooga market.
CSX Chattanooga Terminal
CSX Chattanooga Terminal — FRA covered railroad employees (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 Chattanooga market.
Chattanooga Metropolitan Airport (CHA)
Chattanooga Metropolitan Airport (CHA) — American/Delta FAA pilot and crew employer programs (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 Chattanooga market.
Atmos Energy Chattanooga
Atmos Energy Chattanooga — PHMSA natural gas distribution Hamilton County (PHMSA-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 Chattanooga market.
TDOT Region 2
TDOT Region 2 — I-24/I-75/US-27 Chattanooga construction CDL contractor 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 Chattanooga market.
Applicable Regulations
Employers in Chattanooga commonly coordinate testing under:
- 49 CFR Part 40 — DOT collection and laboratory procedures
- 49 CFR Part 382 — FMCSA CDL automotive, logistics, and construction carrier fleets
- 49 CFR Part 199 — PHMSA Wacker Chemie chemical pipeline and Atmos Energy Hamilton County operators
- 49 CFR Part 219 — FRA covered service Norfolk Southern and CSX Chattanooga
- 14 CFR Part 120 — FAA safety-sensitive CHA pilot, crew, and maintenance employer programs
- Tennessee Drug-Free Workplace Act (T.C.A. § 50-9-101 et seq.) — workers' comp premium discount
Testing Services Available in Chattanooga
We coordinate the following collections for Chattanooga-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 Chattanooga
Norfolk Southern and CSX Chattanooga FRA covered-service random and post-incident collections
Chattanooga Metropolitan Airport FAA pilot, crew, and maintenance employer on-site collections
Atmos Energy PHMSA gas distribution field crew collections throughout Hamilton County
I-24/I-75 Chattanooga logistics corridor CDL fleet and warehouse employer testing
Tennessee DFWP Act compliant collections — workers' comp premium discount
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
Volkswagen assembles the ID.4 EV in Chattanooga — what FMCSA testing applies to their automotive logistics?
CDL operators delivering inbound EV components and transporting outbound Volkswagen vehicles in commercial motor vehicles over 26,001 lbs are subject to FMCSA Part 382 drug and alcohol testing. VW Chattanooga's supplier and outbound logistics CDL fleets require pre-employment, random, and post-accident testing. We coordinate on-site testing at VW's Chattanooga campus and logistics staging areas.
Wacker Chemie makes polysilicon in Charleston, TN near Chattanooga — what PHMSA testing applies?
Wacker Chemie's polysilicon production involves PHMSA-regulated chemical feedstock pipelines including trichlorosilane and other industrial gas systems. Covered-function pipeline employees operating or maintaining those systems are subject to 49 CFR Part 199 PHMSA anti-drug and alcohol misuse prevention requirements. We coordinate PHMSA-compliant on-site collections for Wacker and their contractor workforce.
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 Chattanooga-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.