A DOT SAP evaluation is a mandatory, in-depth assessment for employees in safety-sensitive positions who have violated Department of Transportation drug and alcohol regulations. A qualified Substance Abuse Professional (SAP) conducts a face-to-face evaluation to understand the employee's substance use history and its impact on their life. The SAP then recommends a specific treatment or education program. Upon successful completion, the employee undergoes a follow-up evaluation and, if cleared, becomes eligible for a return-to-duty test.