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The Federal Motor Carrier Safety Administration (FMCSA), in association with the Pipeline and Hazardous Materials Safety Administration (PHMSA) and industry partners, created this tool as a training aid for commercial drivers of cargo tank motor vehicles transporting hazardous materials.
FMCSA strives to improve the safety of cargo tank motor vehicles on the nation's highways. The Agency enforces related rules and regulations, conducts inspections, licenses hazmat carriers, conducts studies, issues advisory notices, and provides educational resources to assist in the safe...
A service agent is any person or entity, other than an employee of the motor carrier, used to help implement the DOT/FMCSA drug and alcohol testing regulations. These might include a urine collector, a breath alcohol technician, a screening test technician, a laboratory, a medical review officer...
Employers seeking additional information on DOT drug and alcohol testing rules are encouraged to use the resources listed on this page.
FMCSA controlled substance and alcohol testing regulations are in place to protect the safety of the traveling public. Public safety is best served if drivers are aware of the effects of alcohol and controlled substances on health, safety, and the work environment. Educating drivers and training...
A driver fails a drug or alcohol test by testing positive to a drug test, or registering a 0.04 or greater alcohol content. Either of these results requires the driver to be immediately removed from performing safety-sensitive functions (i.e., driving CMVs) until successful completion of the...
The DOT drug and alcohol testing procedures are extensive and can be found in 49 CFR Part 40 Subpart E and Part 40 Subpart L, respectively. It is important for employers to know the testing process in order to ensure proper procedures are followed to...
Which substances are tested? DOT drug tests require laboratory testing (49 CFR Part 40 Subpart F) for the following five classes of drugs: Marijuana, Cocaine, Opiates – opium and codeine derivatives, Amphetamines and methamphetamines, Phencyclidine – PCP
Generally, all CDL drivers who operate commercial motor vehicles subject to the CDL requirements on public roads in the U.S. are performing safety-sensitive functions and are subject to DOT drug and alcohol testing (§382.103). This includes all full-time, part-time, intermittent, backup and...
The United States Congress recognized the need for a drug and alcohol free transportation industry, and in 1991 passed the Omnibus Transportation Employee Testing Act, requiring DOT Agencies to implement drug and alcohol testing of safety-sensitive transportation employees. 49 CFR Part 40,...