FAA · FMCSA · FRA · ON-SITE EMPLOYER TESTING
Mobile Drug & Alcohol Testing in Clarksville, Tennessee
On-site DOT-compliant and Non-DOT collections for Fort Campbell — home of the 101st Airborne Division (Air Assault) — MILCON prime contractor CDL and equipment fleets, Hankook Tire's Clarksville manufacturing CDL distribution, and Atmos Energy PHMSA gas distribution field crews throughout the Clarksville metro.
On-site DOT-compliant and Non-DOT collections for Fort Campbell — home of the 101st Airborne Division (Air Assault) — MILCON prime contractor CDL and equipment fleets, Hankook Tire's Clarksville manufacturing CDL distribution, and Atmos Energy PHMSA gas distribution field crews throughout the Clarksville metro. Clarksville anchors military construction (milcon/dod — 101st airborne), tire & rubber manufacturing (fmcsa), pipeline & utilities (phmsa) employer demand — including Fort Campbell; Amentum / PAE Fort Campbell; Hankook Tire Clarksville; LG&E (Louisville Gas & Electric Clarksville area), 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 Clarksville-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 Clarksville Employers Need Mobile Testing
Fort Campbell MILCON CDL and heavy equipment operator on-site testing — all prime and subcontractor tiers
Multi-contractor random pool management across Fort Campbell's concurrent construction programs
program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections
Industries We Serve in Clarksville
Fort Campbell
Fort Campbell — 101st Airborne MILCON Clark/Turner/Hensel Phelps prime contractors CDL (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 Clarksville market.
Amentum / PAE Fort Campbell
Amentum / PAE Fort Campbell — base operations support contractor Non-DOT/CDL (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 Clarksville market.
Hankook Tire Clarksville
Hankook Tire Clarksville — CDL tire manufacturing distribution 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 Clarksville market.
LG&E (Louisville Gas & Electric Clarksville area)
LG&E (Louisville Gas & Electric Clarksville area) — PHMSA gas distribution Montgomery 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 Clarksville market.
Atmos Energy Clarksville
Atmos Energy Clarksville — PHMSA natural gas distribution Montgomery County TN (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 Clarksville market.
TDOT Region 3 Clarksville
TDOT Region 3 Clarksville — I-24/US-41A 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 Clarksville market.
Amazon CLK1 / Montgomery County fulfillment
Amazon CLK1 / Montgomery County 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 Clarksville market.
Applicable Regulations
Employers in Clarksville commonly coordinate testing under:
- 49 CFR Part 40 — DOT collection and laboratory procedures
- 49 CFR Part 382 — FMCSA CDL MILCON, tire manufacturing, and logistics carrier fleets
- DOD contractor drug-free workplace requirements — FAR 52.223-6 for Fort Campbell contractors
- 49 CFR Part 199 — PHMSA Atmos Energy and LG&E Montgomery County pipeline operators
- Tennessee Drug-Free Workplace Act (T.C.A. § 50-9-101 et seq.) — workers' comp premium discount
Testing Services Available in Clarksville
We coordinate the following collections for Clarksville-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 Clarksville
Hankook Tire Clarksville CDL manufacturing fleet pre-employment and random pool management
Atmos Energy and LG&E PHMSA gas distribution field crew collections throughout Montgomery County
TDOT I-24/US-41A Clarksville construction CDL contractor on-site 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
Fort Campbell is home to the 101st Airborne — how do you coordinate MILCON testing on the installation?
We coordinate with your Fort Campbell NAVFAC or prime contractor security officer to arrange collector credentialing under installation access protocols. We serve all active MILCON prime and subcontractor employers at Fort Campbell — meeting FAR 52.223-6 drug-free workplace requirements for federal construction contracts and maintaining separate chain-of-custody records per employer.
Hankook Tire opened a large plant in Clarksville — what CDL testing requirements apply?
CDL operators transporting Hankook tires and manufacturing supplies in commercial motor vehicles over 26,001 lbs are subject to FMCSA Part 382 drug and alcohol testing. We coordinate on-site pre-employment and random testing for Hankook's Clarksville CDL distribution and inbound materials fleet.
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 Clarksville-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.