Reasonable Suspicion Testing (DOT Observed) Purpose of Test Used when a supervisor has documented reasons to suspect drug use in a DOT-regulated employee. Observed Procedure Conducted under direct observation to prevent tampering and ensure valid results. Regulatory Compliance Fully aligned with DOT 49 CFR Part 40 guidelines and employer policy requirements. Timely Administration Scheduled immediately upon supervisor’s determination to ensure swift action. Confidential and Professional Handled discreetly and professionally to protect employee dignity while ensuring safety.