DOT Drug Testing
Federally mandated drug testing compliant with 49 CFR Part 40 for DOT-regulated industries. We serve trucking companies, transit agencies, aviation, pipelines, and more.
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DOT Testing Types
Pre-Employment
Required before a safety-sensitive employee performs DOT-regulated functions for the first time.
Random Testing
Unannounced, random selection testing required throughout the year for covered employees.
Post-Accident
Required following certain types of accidents or incidents involving DOT-regulated vehicles or equipment.
Reasonable Suspicion
Conducted when a trained supervisor has reasonable cause to believe an employee is under the influence.
Return-to-Duty
Required before an employee returns to safety-sensitive duties after a violation.
Follow-Up Testing
Unannounced testing following return-to-duty, as directed by a Substance Abuse Professional (SAP).