Common carriers defined as providing "armored car service" under WAC 480-14-040(8), when transporting cash or coin with a value exceeding one hundred thousand dollars, are subject to the following provisions:

(1) The vehicle must be accompanied by at least two armed security guards qualified under chapter 18.170 RCW and chapter 308-18 WAC.

(2) When the vehicle is located in an unsecured area, one guard must remain within the area.

(3) Those portions of the vehicle surrounding the cargo and personnel must have a UL 752 Testing Certification to Level 1 Medium Powered Small Arms (MPSA); except that any vehicle owned by an armored car service and operated as an armored car prior to December 23, 1995, is exempt from this regulation.