Random Drug Testing

Transportation companies using CDL drivers must conduct randomized drug and alcohol testing. These tests keep businesses compliant with DOT regulations. Random testing also allows employers another method for catching drug and alcohol violators and keeping those drivers off the road.

Fleet Drug Testing is a DOT Compliant Drug Testing consortium and clearinghouse that was founded to give companies a reliable and affordable way to satisfy CDL driver drug and alcohol testing requirements.

Contact Fleet Drug Testing to find out how our professionals can help keep your company and your employees DOT-compliant. We’ll go over the regulations that cover random drug and alcohol testing and answer any questions you might have. We strictly follow DOT compliance standards in all of our testing.

Staying DOT Compliant Through Random Drug Testing

Companies are required to randomly test a percentage of their CDL drivers each year for drug and alcohol use. The drivers tested are required to be selected randomly.

These are some other guidelines from the Federal Motor Carrier Safety Administration (FMCSA) for how random drug testing should be administered:

  • All CDL drivers must have an equal chance of being tested.
  • The alcohol tests must be administered just before, during, or immediately after a CDL driver has performed a safety-sensitive function.
  • Each employer shall ensure that random alcohol and controlled substances tests conducted are unannounced.
  • Each employer shall ensure that the dates for administering random alcohol and controlled substances tests conducted are spread reasonably throughout the calendar year.
  • Non-CDL drivers can not be included in the DOT random testing pool.

Code of Federal Regulations 49 CFR 382.305 goes over the acceptable methods of random selection:

“The selection of drivers for random alcohol and controlled substances testing shall be made by a scientifically valid method, such as a random number table or a computer-based random number generator that is matched with drivers’ Social Security numbers, payroll identification numbers, or other comparable identifying numbers.”

As you may have guessed, these random tests and their complex rules can lead to year-round headaches for your managers and staff. That’s especially true when you don’t have expert help in staying DOT compliant.

Solving the Complex Problem of Random Drug Testing

The simplest solution is to take advantage of Fleet Drug Testing’s full range of services for transportation companies. We handle the randomization, the scheduling, and the testing of your employees all year long. Your drivers and your staff are free to focus on business concerns and doing their jobs.

We also train managers and staff to take DOT regulations seriously and show them how to follow these important guidelines throughout the year. We don’t abandon your employees either. When issues with drugs or alcohol turn up with a CDL driver, we work to get that driver help so they can return to their jobs as soon as possible.

What Are the FMCSA Random Drug Testing Rates for CDL Drivers?

A certain percentage of your employees will have to be tested at random for alcohol each year. A certain percentage of your employees will have to be tested at random for drug use each year.

The current 2023 required rates for random drug and alcohol testing are as follows:

  • 50% of your CDL drivers will be tested for drugs each year.
  • 10% of your CDL drivers will be tested for alcohol each year.


The rates are current as of 2023 and haven’t changed since 2020. Fleet Drug Testing makes sure these rates are followed and keeps track of changes in requirements from year to year.

The FMCSA Administrator decides whether to change the rates for the next year. The decision to increase or decrease the minimum annual percentage rate for alcohol testing is based on the reported violation rate for the entire industry. The same criteria apply to testing for controlled substances.

Contact Fleet Drug Testing for your Random Drug Testing Needs

Fleet Drug Testing offers complete coverage for companies who must comply with DOT regulations for yearly random drug and alcohol testing. Our professionals handle the selection of employees and the administering of the tests according to exact DOT specifications. We submit these results as soon as possible so you won’t be in danger of violations.

Contact Fleet Drug Testing to hear more about our affordable drug testing and background screening services. We also answer your questions about how to remain compliant on DOT random drug and alcohol testing regulations. Getting started as soon as possible is the key to staying DOT-compliant and avoiding major disruption to your business.