Which type of testing is conducted when there is a specific suspicion of drug use?

For-cause testing is conducted specifically when there is a reasonable suspicion or specific information suggesting that an individual may be using drugs. This type of testing is typically initiated following observable behaviors or incidents that raise concerns about potential substance abuse. The rationale behind for-cause testing is to ensure workplace safety and compliance by addressing situations that warrant further investigation into an employee’s drug use.

In contrast, random testing is generally conducted without regard to individual behavior, aiming to discourage drug use among employees by creating an element of unpredictability. Post-event testing would occur after a specific incident, such as an accident, to determine if substance use contributed to the event. Follow-up testing might take place after an employee has previously tested positive, ensuring compliance with rehabilitation or monitoring programs. Each of these methods serves distinct purposes, but for-cause testing stands out as being driven by specific concerns regarding an individual's behavior related to drug use.