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​​What are the reasons an employer might conduct a drug test?

Reasonable Suspicion
Return to Duty
Follow up

What is considered a refusal to test?

DOT regulations prohibit you from refusing a test.  The following are some examples of conduct that the regulations define as refusing a test:

  • Failure to appear for any test after being directed to do so by your employer.
  • Failure to remain at the testing site until the testing process is complete.
  • Failure to provide a urine or breath sample for any test required by federal regulations.
  • Failure to permit the observation or monitoring of you providing a urine sample.
  • Failure to provide a sufficient urine or breath sample when directed, and it has been determined, through a required medical evaluation, that there was not adequate medical explanation for the failure.
  • Failure to take a second test when directed to do so.
  • Failure to cooperate with any part of the testing process.
  • Failure to to undergo a medical evaluation as part of  "shy bladder" or "shy lung" procedure.
  • Providing a specimen that is verified as adulterated or substituted.
  • Failure to cooperate with any part of the testing process (e.g., refuse to empty pockets when directed by the collector, behave in a confrontational way that disrupts the collection process, fail to wash hands after being directed to do so by the collector).
  • Failure to follow the observer's instructions during a direct observation collection to raise your clothing above the waist, lower clothing and underpants, and to turn around to permit the observer to determine if you have any type of prosthetic or other device that could be used to interfere with the collection process.

What happens if I test positive, refuse a test, or violate an agency specific drug & alcohol rule?

​If you test positive, refuse a test, or violate DOT drug & alcohol rules:

  • A supervisor or company official will immediately remove you from DOT regulated safety-sensitive functions
  • You will not be permitted to return to performing DOT regulated safety-sensitive duties until you have:

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