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Reasonable Suspicion Test / Other


Drivers who appear to be under the influence of drugs or alcohol can be immediately tested (§382.307). Employers must train CDL driver supervisors to detect the symptoms of driver impairment (§382.603).


Reasonable suspicion testing is a type of drug and alcohol testing that is conducted on employees when there is a reasonable suspicion that they are under the influence of drugs or alcohol while on the job.

The term “reasonable suspicion” refers to a situation where a supervisor or manager has observed an employee exhibiting behavior that suggests they may be under the influence, such as slurred speech, unsteady gait, bloodshot eyes, or erratic behavior.

Before conducting reasonable suspicion testing, the supervisor or manager must document their observations and the reasons for their suspicion. They should also consult with their company’s drug and alcohol testing policy to ensure they are following the correct procedures.

Reasonable suspicion testing is typically conducted through a urine test, blood test, or breathalyzer test. The results of the test can determine whether the employee is under the influence of drugs or alcohol and whether disciplinary action, including termination, is necessary.

It’s important to note that reasonable suspicion testing should only be conducted when there is a genuine reason to suspect that an employee is under the influence. Conducting testing without reasonable suspicion can be a violation of an employee’s rights and may result in legal action.