Resources
Breath Alcohol Testing
8 guides on breath alcohol testing.
Insufficient Breath on an Alcohol Test: What DOT Procedure Requires
What happens when a driver can't produce enough breath volume for a DOT alcohol test, how the medical evaluation referral works, and how it differs from a refusal.
5 min read Read →Breath Alcohol TestingEBT vs ASD: Which Alcohol Screening Devices DOT Accepts
DOT alcohol testing only allows devices on NHTSA's Conforming Products List. Here's how EBTs and ASDs differ, which one your program actually needs, and how to verify a device is approved.
5 min read Read →Breath Alcohol TestingDOT Alcohol Test Refusals: What Counts and What Happens Next
What legally counts as a DOT alcohol test refusal under 49 CFR Part 40, how it differs from a violation, and the immediate consequences for the employee.
5 min read Read →Breath Alcohol TestingPost-Accident Alcohol Testing: The 8-Hour Clock Under 49 CFR 40
DOT post-accident alcohol testing has an 8-hour deadline, not a 2-hour one — and that deadline behaves differently than most safety managers assume. Here's the actual rule.
5 min read Read →Breath Alcohol TestingDOT Random Alcohol Testing Rates: How Selection Pools Work
DOT random alcohol testing runs on an annual percentage rate, not a per-employee schedule. Here's how the selection pool, rate changes, and refusal consequences actually work.
6 min read Read →Breath Alcohol TestingWhat Is a Breath Alcohol Technician? BAT Certification Explained
What a Breath Alcohol Technician does under 49 CFR §40.213, how BAT training and qualification work, and and why there is no such thing as a "DOT-certified" technician.
5 min read Read →Breath Alcohol TestingDOT Alcohol Testing: Screening vs Confirmation Tests
How DOT breath alcohol screening and confirmation tests differ under 49 CFR Part 40, what triggers a confirmation test, and what results mean.
5 min read Read →Breath Alcohol TestingDOT Breath Alcohol Testing: What a Compliant Program Needs
Qualified BATs, an evidential breath tester on the conforming products list, calibration checks with dry-gas standards, correct forms, and the 15-minute confirmation rule — the moving parts of 49 CFR Part 40 alcohol testing.
6 min read Read →