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BAT (Breath Alcohol Test)

An alcohol screening using an evidential breath testing device (EBT) to measure blood alcohol concentration from a breath sample.

Key Facts

  • Screening test threshold: 0.02 BAC; confirmation at 0.04 BAC (DOT)
  • Must be administered by a trained Breath Alcohol Technician
  • EBT devices must be on NHTSA Conforming Products List
  • Reasonable suspicion testing has a 2-hour window

Breath alcohol testing is the DOT-approved method for workplace alcohol screening under 49 CFR Part 40. Testing must be conducted by a trained Breath Alcohol Technician (BAT) using an approved Evidential Breath Testing device (EBT). A screening test result of 0.02 or higher requires a confirmation test. A confirmed result of 0.02-0.039 requires the employee to be removed from safety-sensitive functions for at least 24 hours. A result of 0.04 or higher is a DOT violation requiring SAP referral.

Related Services

Breath Alcohol Test (BAT)

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TransportationConstruction

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