DOT Drug and Alcohol Testing for CDL Drivers
What DOT drug and alcohol testing is, which drivers are covered, what substances are tested, and when testing is required under 49 CFR Part 382.
DOT Drug Testing Guides
All CDL drivers operating commercial motor vehicles in interstate commerce are subject to DOT drug and alcohol testing under 49 CFR Part 382. These guides cover the full testing program: who is covered, what is tested, and what each test type requires.
Pre-Employment Drug Test Checklist for CDL Drivers
Step-by-step checklist of DOT pre-employment drug testing requirements before a CDL driver begins safety-sensitive functions under 49 CFR Part 382.
Random Drug Testing Pool for CDL Drivers
How DOT random drug and alcohol testing pools work for CDL drivers, including annual rates, C/TPA consortium enrollment, and employer obligations.
Post-Accident Drug and Alcohol Testing Rules
When post-accident DOT drug and alcohol testing is required, the timing windows (8 hr alcohol, 32 hr drugs), and documentation requirements.
Return-to-Duty Process and SAP Evaluation
DOT Return-to-Duty process for CDL drivers after a drug or alcohol violation: SAP evaluation, RTD test, and follow-up testing under 49 CFR Part 40.
Reasonable Suspicion Testing for CDL Drivers
When DOT reasonable suspicion testing applies, what a supervisor must observe, documentation steps, and the 2-hour alcohol testing window under Part 382.
Drug Testing Checklist for Owner-Operators
DOT drug and alcohol testing checklist for CDL owner-operators: pre-employment test, random pool enrollment, post-accident testing, and C/TPA obligations.