DOT alcohol tests use two kinds of devices. Under 49 CFR 40.3, an evidential breath testing device (EBT) is approved by the National Highway Traffic Safety Administration (NHTSA) for the evidential testing of breath at the .02 and .04 alcohol concentrations and appears on ODAPC's web page for Approved Evidential Breath Measurement Devices. An alcohol screening device (ASD) is a breath or saliva device, other than an EBT, that is approved by NHTSA and appears on ODAPC's web page for Approved Screening Devices to Measure Alcohol in Bodily Fluids.
Under 49 CFR 40.229, listed ASDs and EBTs are the only devices allowed for screening tests, and an ASD may be used only if Part 40 has instructions for its use. An ASD can be used only for screening tests and must not be used for confirmation tests.
Under 49 CFR 40.231(b), a confirmation test uses a listed EBT that prints a result in triplicate or as three consecutive identical copies, assigns a unique number to each completed test, prints the manufacturer's name, the serial number and the time of the test, distinguishes alcohol from acetone at the 0.02 level, tests an air blank and performs an external calibration check.
Under 49 CFR 40.233, each EBT has a manufacturer's quality assurance plan (QAP) approved by NHTSA that sets calibration check methods, tolerances and intervals. The user follows the manufacturer's instructions, uses only calibration devices on NHTSA's conforming products list for calibrating units, takes an EBT that fails an external calibration check out of service until it is repaired and passes, and keeps inspection, maintenance and calibration records. Saliva devices are covered in Can a Saliva Device Be Used for a DOT Alcohol Test?.
Some Alcohol Testing listings in the MyDrugTesting.com directory have a Schedule a Test button that opens the provider's own website or booking page.
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