Our Services

TNT provides the following services :

Types of tests

On Site Collections 


Post Accident


Reasonable Suspicion



Breath/Saliva Alcohol Testing

Urine, Saliva, and Hair Testing

Medical Review Officer-Lab Based

DOT Qualified Breath Alcohol Techs

DOT Qualified Urine Drug Collectors

Supervisor Training Program 

After Hours Service

Third Party Administration

DOT testing

NON-DOT Testing

Tennessee Drug Free Workplace 

In Home Testing - Privacy

Facility Locator

Business Consultation

Contact Us

Drop us a line!

Normal Business Hours: Monday - Friday 8:00 AM-4:00 PM

After Hours: 24/7/365 -Emergency Service

Tennessee Narcotics Testing

(615) 206-7667