Return-to-duty testing is required for commercial drivers who have violated Federal Motor Carrier Safety Administration (FMCSA) drug and alcohol regulations. After completing the necessary Substance Abuse Professional (SAP) process, drivers must take and pass a return-to-duty drug test to be cleared to resume their duties.
Once a driver completes the required SAP services, they are ready for the return-to-duty drug test. The test ensures that the individual is no longer using prohibited substances and is fit to return to work in compliance with FMCSA guidelines.


