Wash. Admin. Code § 415-108-480
(1) PERS Plan 1 members:
(b) Use of an employer vehicle for nonbusiness purposes qualifies as compensation earnable if:
(ii) Your employer maintains monthly records of your personal use. These records must contain:
(c) The department presumes that your use of an employer vehicle is solely for business purposes. If you used an employer vehicle for personal use, your employer must report the value of this use as compensation earnable on a monthly basis. Monthly compensation earnable is the lesser of the following:
(ii) Miles of Personal Use x IRS Mileage Rate.
The IRS Mileage Rate is the mileage rate adopted by the Internal Revenue Service for use by taxpayers in computing the value of the use of a vehicle.
[Statutory Authority: RCW 41.50.050(5) and 41.40.010. WSR 02-03-120, § 415-108-480, filed 1/23/02, effective 3/1/02. Statutory Authority: RCW 41.50.050. WSR 95-22-006, § 415-108-480, filed 10/18/95, effective 11/18/95. Statutory Authority: RCW 41.40.010(8) and 41.40.020. WSR 87-17-061 (Order DRS 87-08), § 415-108-480, filed 8/19/87.]