ASD
Alcohol screening device (ASD). A breath or saliva device, other than an EBT, that is approved by the National Highway Traffic Safety Administration (NHTSA) and appears on ODAPC's Web page for Approved Screening Devices to Measure Alcohol in Bodily Fluids because it conforms to the model specifications from NHTSA.
Source
49 CFR § 40.3
Scoping language
In this part, the terms listed in this section have the following meanings: