What is the minimum duration for retaining negative drug test records by employers?

Employers are required to retain negative drug test records for a minimum of three years. This retention period is mandated to ensure compliance with federal regulations, specifically those established by the Department of Transportation (DOT) for transportation employees. Maintaining these records is important for several reasons: it helps employers track compliance with drug testing requirements, supports the integrity of their drug testing programs, and provides documentation in case of audits or investigations.

The three-year duration allows employers adequate time to access and utilize these records should they need to demonstrate adherence to federal standards or address any potential issues related to employee drug testing. This requirement does not apply to other types of employee testing that may have different retention criteria, which is why it is essential for employers to understand the specific regulations pertinent to their industry and the drug testing protocols they follow.