What if I fail or refuse a test?

You fail 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 you to be immediately removed from performing safety-sensitive functions (i.e., driving CMVs) until successful completion of the return-to-duty...

Driver Resources and Downloads

CDL drivers seeking additional information on DOT drug and alcohol testing rules are encouraged to use the resources listed on this page. Videos: DOT Mock Collection Instructional Video DOT's 10 Steps to Collection Site Security and Integrity Video Brochures & Guides: Drug and Alcohol...

When does testing occur and what tests are required?

DOT drug and alcohol tests include: Pre-employment – An employer must receive a negative drug test result before permitting a CDL driver to operate a CMV. (§382.301). Post-accident – Drug and alcohol tests may be required after crashes according to the following chart (§382.303):

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

Who is Tested?

Who is Tested? 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,...

Overview of Drug and Alcohol Rules

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,...

Drug & Alcohol Testing Program

Who's Impacted?

• Anyone employing CDL drivers to operate commercial motor vehicles (CMVs) on public roads
• CDL drivers who operate CMVs on public roads
• Interstate motor carriers
• Intrastate motor carriers
• Federal, State, and local governments
• Civic organizations (disabled veteran transport, boy/girl scouts, etc.)
• Faith-based organizations

Resources for Drivers*

New Hours-of-Service Safety Regulations to Reduce Truck Driver Fatigue Begin Today

The U.S. Department of Transportation's Federal Motor Carrier Safety Administration (FMCSA) announced that new federal regulations designed to improve safety for the motoring public by reducing truck driver fatigue took full effect today, July 1, 2013.

FMCSA Proposes to Eliminate Outdated Reporting Requirement

The U.S. Department of Transportation’s (DOT) Federal Motor Carrier Safety Administration (FMCSA) has proposed a new rule that would eliminate a quarterly financial data reporting requirement for some interstate motor carriers.

FMCSA Final Rule Helps Consumers Protect Their Household Goods Move and Eliminates Unnecessary Burdens for Moving Companies

This week, the U.S. Department of Transportation’s Federal Motor Carrier Safety Administration (FMCSA) issued a final rule that strengthens protections for consumers moving their property across state lines. Under the new rule, if a household goods moving company and the consumer negotiate a...