Trucking photoWhile lab-based DOT urine tests are still the requirement, more trucking companies are electing to perform a hair drug test in addition to the urine test. In a profession where the consequences of impaired driving can be catastrophic, carriers depend on testing to help ensure that drivers are drug-free. Hair testing helps in this regard as it tends to provide a greater number of positive results when compared to urine because of its longer detection window and a tendency to be difficult to tamper or adulterate.

Read more about this trend towards hair testing in the trucking industry in this article from Overdrive.

For more information about drug testing, visit our website.