
Many trucking companies require hair follicle tests for potential hires, which can be a concern for those who use marijuana or other substances.
Some trucking companies that do hair follicle tests include Prime Inc., CR England, and Dart Transit Company.
These tests can detect the presence of THC, the psychoactive compound in marijuana, in hair samples.
Hair follicle tests are considered more accurate than urine tests because they can detect substance use over a longer period.
Suggestion: Trucking Companies That Don't Hair Test
Trucking Companies and Hair Follicle Tests
Some trucking companies require hair follicle testing, including AAA Cooper Transportation, Averitt Express, and Big M Transportation. These companies are among the many that have been reported to use hair follicle testing as part of their hiring process or for existing employees.
The list of companies that require hair follicle testing is quite extensive, with over 30 companies listed in the article. Some notable companies that require hair follicle testing include C.R. England, CFI, and Swift Transportation.
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Here is a list of some of the trucking companies that have been reported to require hair follicle testing:
- AAA Cooper Transportation
- Averitt Express
- Big M Transportation
- C.R. England
- CFI
- Comcar CTL
- XPO/Con-Way Freight
- Crete
- Cypress Truck Lines
- Decker Truck Lines
- Dillon Transport
- General Motors
- Gordon Trucking
- Halvor Lines
- Heartland Express
- H. O. Wolding
- Hub Group
- JB Hunt
- KLLM/FFE
- Knight Transportation
- Lynden
- Maverick
- McElroy Truck Lines
- Metropolitan Trucking
- Melton
- Paschall Truck Lines
- Pride Transport
- Roehl
- Schneider
- Shell Oil
- Shaffer Trucking
- SuperService
- Swift Transportation
- Transport America
- USXpress
- Werner Enterprise
- WEL Companies
Note that some companies, like WEL Companies, may only require hair follicle testing if the employee has a previous failed test or conviction.
Trucking Companies in Trouble
Some trucking companies have faced issues related to hair follicle testing. Celadon, for example, was reported to have required hair follicle testing in March 2015.
Companies like Central Freight Lines and Comcar CT were also reported to have required hair follicle testing in September 2015. This is not an exhaustive list, but it gives you an idea of the companies involved.
Here's a list of some trucking companies that have been reported to have required hair follicle testing:
- Celadon (Mar, 2015)
- Central Freight Lines (Sep, 2015)
- Comcar CT (Sep, 2015)
- Comcar MCT (Sep 2015)
- Covenant Transport (Apr, 2015)
- CRST (Dec, 2017)
- Dayton Freight (Sep, 2015)
- Falcon Transport (Sep, 2015)
- Groendyke (Sep, 2015)
- Henderson Trucking (Aug, 2015)
- Hogan (Feb 2016)
- Jim Palmer (Jan, 2018)
- Jacobson/XPO (Sep, 2015)
- Martin Transportation Systems (Sep, 2015)
- May Company (Oct, 2014)
- Millis Transport (Aug, 2015)
- Navajo (Oct, 2014)
- Oak Harbor Freight Lines (Sep, 2015)
- P & S Transportation (Sep, 2015)
- PAM (Oct, 2014)
- Prime, Inc. (Sep, 2015)
- R + L Carriers (Sep, 2015)
- R.E. Garrison (Sep, 2015)
- Southern Refrigerated Transport (Aug, 2015)
- Stevens Transport (Feb, 2016)
- TMC (Aug 2017)
- TransAm (Aug, 2015)
- Trans-System (Sep, 2015)
- TransWood Carriers (Sep, 2015)
- USA Truck (Sep, 2015)
- Watkins Shepard (Sep, 2015)
- Western Express (Apr, 2016)
- Wil-Trans (Jan, 2018)
Cost of Drug Test
The cost of drug testing can be a significant concern for trucking companies and job seekers alike. A lab will only need about 100 milligrams of hair to complete the test, the equivalent of 90 to 120 strands of hair. This relatively small amount of hair is a relief for those worried about losing a lot of hair for the test.
Expand your knowledge: Trucking Companies Drug Test
Understanding Hair Follicle Tests

Hair follicle tests are a straightforward process that can provide valuable insights into a person's drug use. They involve taking a sample of hair, which is then analyzed by a specialized laboratory to determine if drugs have been used.
The process of hair follicle testing is based on the way drugs affect the body. When you consume drugs, the chemicals in their composition are metabolized in the bloodstream and can become incorporated into the structure of your hair.
Hair follicle tests can detect drugs that have been used up to 90 days prior, making them a more effective method than urine tests, which can only detect drugs for up to a week after they've been taken.
Here are some common drugs that can be detected through hair follicle testing:
- Cocaine
- Marijuana (specifically, THC)
- Amphetamines (including methamphetamine and MDMA)
- Phencyclidine (PCP)
- Opiates (including heroin, codeine, and morphine)
If a hair follicle test detects drugs, it can have serious consequences, particularly in the trucking industry, where it can lead to removal from safety-sensitive functions and a return-to-duty process with a DOT-qualified substance abuse professional.
Consequences of Hair Follicle Tests

If you're a truck driver, a positive result from a hair follicle test can be a big problem for your career. You'll be removed from safety-sensitive functions until you complete a return-to-duty process with a DOT-qualified substance abuse professional.
You'll have to pass a return-to-duty drug test to return to work. This is a standard procedure to ensure the utmost safety at your job.
A hair follicle test can detect drug use for a longer period than other types of tests. This is why they're often used in industries like trucking, where safety is a top priority.
You'll need to contact a service like Consortium Pool for help with the return-to-duty process and to enroll in their nationwide drug and alcohol testing consortium. They offer efficient DOT compliant services for trucking companies and owner-operators.
Intriguing read: Safety Compliance for Trucking Companies
Sources
- https://www.truckingtruth.com/wiki/topic-50/hair-follicle-vs-urinalysis-breakdown-by-company
- https://www.safecarriers.org/industry-information-posts/exceptions-to-hair-testing/
- https://labworksusa.com/a-step-by-step-guide-to-hair-follicle-drug-testing-for-truckers
- https://www.truckingdive.com/news/trucking-voices-FMCSA-hair-testing-health-ruling/632800/
- https://consortiumpool.com/insights/hair-follicle-drug-testing-guide/
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