Washington Revised Code Title 46. Motor Vehicles § 46.64.070. Stopping motor vehicles for driver's license check, vehicle inspection and test--Authorized--Powers additional

To carry out the purpose of RCW 46.64.060 and 46.64.070, officers of the Washington state patrol are hereby empowered during daylight hours and while using plainly marked state patrol vehicles to require the driver of any motor vehicle being operated on any highway of this state to stop and display his or her driver's license and/or to submit the motor vehicle being driven by such person to an inspection and test to ascertain whether such vehicle complies with the minimum equipment requirements prescribed by chapter 46.37 RCW, as now or hereafter amended. No criminal citation shall be issued for a period of ten days after giving a warning ticket pointing out the defect.

The powers conferred by RCW 46.64.060 and 46.64.070 are in addition to all other powers conferred by law upon such officers, including but not limited to powers conferred upon them as police officers pursuant to RCW 46.20.349 and powers conferred by chapter 46.32 RCW.