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The Global Insight

Can you retake a failed dot drug test?

Author

Mia Phillips

Updated on April 03, 2026

You may request a retest within 72 hours of receiving a positive test result after consulting with your MRO. You see, DOT drug and alcohol testing rely heavily on urine samples. The tests performed are carried on split samples.

How long does it take to get FAA drug test results?

Negative drug screen results are generally available 24 – 48 hours after the specimens are received at the laboratory. Non‐negative results typically take 3‐5 business days from the time the specimen arrives at the laboratory.

What drugs will make you fail a DOT drug test?

You will be tested for the following drugs:

  • Marijuana.
  • Cocaine.
  • Opioids (Codeine, morphine, heroin, hydrocodone, hydromorphone, oxycodone, oxymorphone)
  • Phencyclidine (PCP)
  • Amphetamines, Methamphetamines, and Methylenedioxymethamphetamine (MDMA)

What drugs do FAA test for?

The FAA follows the U.S. Department of Transportation (DOT) drug testing regulations, and those regulations require testing for the following substances: marijuana, cocaine, opiates/opioids, phencyclidine (PCP) and amphetamines (which includes methamphetamines and MDMA (“Ecstasy”)).

What drugs are tested for in a FAA drug test?

This requires testing for five commonly abused drugs: Marijuana, Cocaine, Opiates, Amphetamines, Phencyclidine (PCP).

How long does it take for a dot urine drug test to come back?

Drug test results typically take 24 to 48 hours, depending on the type of test being performed (e.g., urine, hair or DOT).

What do you need to know about FAA drug testing?

DOT drug testing rules require FAA employers to test their employees for the following drugs: Marijuana, Opiates, PCP, Cocaine, and Amphetamines. For DOT Alcohol Testing, the prohibited alcohol concentration for FAA employees is 0.04% or greater. Instant tests can monitor the Breath Alcohol Concentration of drivers, immediately.

What happens if a pilot refuses drug testing?

If the pilot doesn’t arrive at the appointed time or is thought to be tampering with the drug testing process they are considered to have refused to test.

What happens if you fail a dot drug test?

Should you want to continue driving, you must complete the entire treatment course and return-to-duty process. You will be required to cover any treatment fees. After you’ve completed treatment, you’ll be required to take another drug test. Should you pass your returning drug test, you’ll be allowed to return to work.

Who is allowed to do dot alcohol testing?

For DOT alcohol screening, only a screening test technician (STT) and breath alcohol technician (BAT) are allowed to perform the alcohol test. DOT Alcohol Testing requires 2 tests: a screening and confirmation test. STTs are only allowed to perform screening tests, while BATs are allowed to perform both tests.