For purposes of implementing procedures for updating, validating and maintaining the county road log, the following definitions shall apply:

(1) County road log - The listing, by county, of all roads under county jurisdiction including their description, length, milepost identification, functional class, surface type, traffic volume, and other administrative and physical inventory items that may be included.

(2) Computer database application software - The computer database application software by which the county road log data is updated and maintained by all counties and the county road administration board.

(3) Updates - Periodic changes to the county road log involving any or all of the included data elements.

(4) Control fields - Those fields within the county road log for which all updates need to be verified by the county road administration board prior to inclusion in the master county road log. Control fields are those fields utilized for the computation of gas tax allocations in accordance with RCW 46.68.124. The control fields are: Unique identifier (county road number, beginning milepost, ending milepost), jurisdiction, length, function class, surface type, surface width, right and left shoulder type, right and left shoulder width, and average daily traffic volume.

(5) Master county road log - The combination of all county road logs as kept by the county road administration board containing the county road log of all counties as of July 1st of each year.