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DOT Drug Test

When performing jobs that are identified as safety-sensitive by the U.S. Department of Transportation (DOT), you will be subject to DOT drug testing rules and regulations.  Before completing your DOT Drug test, it is imperative to make sure your drug test is completed by a DOT-certified technician like ours here at Mednovations.  If your DOT drug test is performed by a non-certified technician, it will not be accepted.

Some safety-sensitive transportation jobs such as merchant mariners not only require DOT drug test but also need special paperwork processing to have their DOT test accepted. The staff at Mednovations is knowledgeable with all the paperwork necessary for merchant mariner drug testing and will ensure all results and paperwork are processed in a timely fashion for efficient completion of your merchant mariner application.

Employees that work in the fields below are subject to DOT drug test requirements

(However, if your job is not listed but has been labeled as safety-sensitive, you are also subject to the DOT drug test guidelines).


  • FAA Flight Crews and Attendants
  • Flight Instructors and Air Traffic Controllers
  • Aircraft Dispatchers and Maintenance Personnel
  • Ground Security Coordinators and Aviation Screeners

Commercial Motor Carriers

  • Commercial Driver’s License (CDL) Holders
  • Drivers Transporting Hazardous Material


  • An Agency of the U.S. Department of Homeland Security
  • Employees Operating a Commercial Vessel
  • Merchant Mariners


  • Engine and Train Operators
  • Signal Service and Train Dispatchers


  • Vehicle Operators
  • Controllers and Mechanics
  • Armed Security


  • Operations and Maintenance
  • Emergency Response

The DOT drug tests are conducted using a urine sample which tests for marijuana, cocaine, amphetamines, opiates, and phencyclidine.  In some cases, an employer may require that a DOT drug test be an observed collection. In this situation, a staff member of the same sex will professionally observe an employee placing a urine specimen into a urine cup.  Employees with transportation-related jobs are prohibited from working while using illegal drugs or controlled substances unless prescribed by a medical professional.

DOT drug test not only improves workplace safety but also increases workplace productivity.   Since 1991, the Omnibus Transportation Employee Testing Act has required DOT agencies to implement drug testing of transportation employees aiming for a drug-free transportation industry.  As a DOT employee, you may not refuse any employer requested drug test during the course of your employment.

Employees are subject to DOT drug test during the following circumstances:

  • Pre-Employment
  • Reasonable Suspicion or Cause
  • At Random
  • Post-Accident

Contact Us Today

With Mednovations DOT drug test services, our knowledgeable staff offers accurate results, quick turnaround times, quality customer service, and confidential assistance.  For more information regarding DOT drug test or our other services contact Mednovations today or schedule your appointment online now.