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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

General Content

Legacy ID
31
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Hazardous Materials/Dangerous Goods Regulations

In support of the mission of Federal Motor Carrier Safety Administration (FMCSA) to improve truck and bus safety on our nation's highways, the Agency enforces rules and regulations designed specifically to govern the movement of Hazardous Materials (HM).

 

Keep the Load on the Road

Over 78% of rollovers involve driver error. As a driver, YOU are the key component for preventing rollovers. The preview above highlights what you’ll see in the full 17 minute video.

Cargo Tank Truck Rollover Prevention

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.

Cargo Tank Safety

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...

What are Service Agents?

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 Resources and Downloads

Employers seeking additional information on DOT drug and alcohol testing rules are encouraged to use the resources listed on this page.

What are my employee and supervisor training responsibilities?

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...

What if my driver fails or refuses a test?

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...

Testing Procedures

What Employers Need to Know

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...

What Substances Are Tested?

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