Calculate the use tax amount using the actual use tax rates and actual cost per gallon; or
Have the department calculate the use tax amount using an average use tax rate and price per gallon.
Either method chosen must be used for each refund claim submitted during the calendar year, unless there has been a change in the department's estimated average fuel cost during that period.
Wash. Admin. Code § 308-77-106
Statutory Authority: RCW 82.38.260. 09-07-075, § 308-77-106, filed 3/16/09, effective 4/16/09; 01-22-073, § 308-77-106, filed 11/1/01, effective 12/2/01.