DUI Portable Breath Test Laws
WAC 448-15-010
Approval of devices.
The following preliminary breath test (PBT) instruments are approved for use in the state of Washington as breath alcohol screening devices, subject to the requirements outlined in the following sections:
Alcosensor III (Intoximeters, St. Louis, MO).
Any other instruments on the National Highway Traffic Safety Administration (NHTSA) approved products list will be considered for approval in Washington state on application to the state toxicologist, providing that a suitable program for maintenance, certification and operator training is also established and approved.

