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49 cfr part 40
3 guides tagged “49 cfr part 40”.
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 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 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 →