DOT Drug Testing Requirement

Drug testing is mandatory for every employee engaged in safety-sensitive operations in the transportation industry.

Types of drug screening in DOT test
Urine specimens collected for drug test are analyzed against the following controlled substances:
  • Cocaine metabolites
  • Marijuana metabolites/THC
  • Opiates (Including Codeine, Heroin (6-AM), Morphine)
  • Phencyclidine (PCP)
For alcohol testing, breath and saliva specimens are analyzed to check alcohol concentration.

Instances covered under federal drug testing requirement

A driver is subject to a drug test when hired by an organization. Only those employees are certified to perform safety-sensitive operation whose drug test result is negative.
As per DOT regulations, an employer can randomly select any employee for testing and every employee should have an equal chance to be chosen for testing. A driver is informed just prior to this testing event. In case, a driver is failed to show for the test, it will be marked as a refusal. 
Reasonable suspicion
The driver should submit a test either, drug, alcohol or both if a supervisor requests due to some reasonable suspicion based on his/her observation. 
Return to duty
If a driver test results are positive and is failed to comply with drug and alcohol regulations, then he/she should take this test prior returning to safety-sensitive service. 
Post Accident
This post-accident test is required when a driver is involved in an accident event that meets a particular criterion of DOT agency. The driver should be available for this test and is not allowed to refuse it. 
SAP (Substance Abuse Professional) will determine the amount of follow-up testing a driver needs to undergo during his/her return to duty. The employer will be conducting and observing this test and is liable to ensure it is completed by the driver. 

In case of failure in DOT testing, the driver should be removed immediately by the employer.  In some cases, a driver may lose his/her license/certification. 

Testing Process

Driver must follow the regulations associated with drug and alcohol testing procedure mentioned as follows:
  • The driver should report immediately to the collection site when given a notification for testing. 
  • For drug testing, a urine sample is tested. In case of any problem while testing, retesting will be performed under direct observation. 
  • A time interval of three hours is allotted to the driver to provide the urine sample. 
  • When testing is performed, the MRO (Medical Review Officer) will be notified for report evaluation. MRO declares results as positive/ negative/refusal/cancelled. 


  1. The information about drugs which you have provided is very good and essential for everyone. Keep sharing this kind of information. Thank you.

  2. Thanks for a very interesting blog. What else may I get that kind of info written in such a perfect approach? I’ve a undertaking that I am simply now operating on, and I have been at the look out for such info. Covid Antigen Test Kit

  3. You have shared such a great article in this post. I got some useful knowledge about DOT Drug Testing from this post. Thanks for posting it. Keep it up. drug screening service

  4. 10 panel saliva drug test Wow, cool post. I'd like to write like this too - taking time and real hard work to make a great article... but I put things off too much and never seem to get started. Thanks though.

  5. Extremely useful information which you have shared here about drug testing This is a great way to enhance knowledge for us, and also beneficial for us. Thank you for sharing an article like this. drug testing services

  6. I like your post. It is good to see you verbalize from the heart and clarity on this important subject can be easily observed... Drug test cups

  7. Wow, cool post. I'd like to write like this too - taking time and real hard work to make a great article... but I put things off too much and never seem to get started. Thanks though. Riverside Rehab center

  8. Your blog is very useful for those who are searching for this kind of information, this information is a solution for those who are confused about it. Thanks for sharing this blog with us.Alcohol treatment centers Bakersfield ca

  9. Good and nice job, You are providing essential knowledge. It is very helpful and factual information for us and everyone to increase knowledge. Continue sharing your data. Thanks once again for sharing it. sleeping pills online UK

  10. This is excellent information which is shared by you. This information is meaningful and magnificent for us to increase our knowledge about it. Keep sharing this kind of information. Thank you. Read more info about sleeping pills online UK

  11. I am very thankful to you for sharing this best knowledge with us. This information is helpful for everyone. So please always share this kind of knowledge with everyone. Thanks. Read more info about buy diazepam 10mg tablets online UK

  12. You have worked nicely with your insights that makes our work easy. The information you have provided is really factual and significant for us. Keep sharing these types of article, Thank you. Garm Clinic

  13. I admire this article for well-researched content and excellent wording. Thank you for providing such a unique information here. Injury Prevention Specialist Australia

  14. Great artical, you give most important information about Retro Health. It is also very useful ,so thanks a lot for that amazing information.

  15. I admire this article for the well-researched content and excellent wording. Read more info about Buy Modafinil Online Paypal. I got so involved in this material that I couldn’t stop reading. I am impressed with your work and skill. Thank you so much.

  16. substance abuse treatment california This particular is usually apparently essential and moreover outstanding truth along with for sure fair-minded and moreover admittedly useful My business is looking to find in advance designed for this specific useful stuffs…


Post a Comment

Popular posts from this blog

Telematics and its diverse benefits for fleets

Revised regulations FMCSA

5 Winter Weather Driving Tips for Truck Drivers