(1) Your "usual hours" will be determined based on:
(a) The hours of work agreed on by you and your employer as part of your individual hiring agreement;
(b) For seasonal jobs, the number of hours you customarily work during the season;
(c) For piecework, the number of hours you customarily work to complete a fixed volume of work; or
(d) For a driver of a transportation network company as defined in RCW 50.04.370, the average number of hours per active driver in the region in the same quarter of the previous year.
(2) To constitute good cause for quitting under this section, employer action must have caused the reduction in your usual hours. For a driver of a transportation network company as defined in RCW 50.04.370, the transportation network company will be deemed to have caused the reduction if the aggregate hours of drivers, calculated pursuant to WAC 192-310-040(8), divided by the number of active drivers in the region is reduced by 25 percent or more in the most recent calendar quarter for which reporting has been completed compared to the same quarter of the previous year.
(3) All reductions in hours occurring since the beginning of your base period through the date of separation will be included in the determination as to whether your hours were reduced by 25 percent or more.
(4) In determining the percentage of reduction, the department will not consider any temporary overtime or additional hours performed on a temporary basis.
(5) For purposes of this rule as it applies to transportation network company drivers, the state is divided into regions as follows:
(a) Each municipality with a population of more than 600,000 shall be a distinct region; and
(b) The remainder of the state shall constitute a single region.
(6) If a transportation network company's driver has at least 33 percent of their completed trips originate in a region in a quarter, the driver will be deemed to have the usual hours in that region for that quarter.