Abbreviation: SAP
Substance Abuse Professional
A licensed professional who evaluates CDL drivers who have violated DOT drug or alcohol regulations, recommends treatment or education, and determines when the driver is ready to return to safety-sensitive duties.
A driver with a drug or alcohol violation in the Clearinghouse cannot return to safety-sensitive duties until they complete the SAP evaluation and follow-up process.
Last updated: June 4, 2026