Wash. Rev. Code § 29A.60.300
Every odd-numbered year, the secretary of state must conduct and publish a statewide survey of voted ballot rejection rates and the reasons for those rejections by county auditors and canvassing boards. The secretary of state must collect data from reconciliation reports and county auditors in order to compare county and statewide averages for rates of rejected ballots and reasons for those ballots being rejected. The data collected must include rejection rates and reasons for rejection of voted ballots for all elections. The survey must include an analysis of current practices by county auditors and canvassing boards in the acceptance and rejection of ballots, and include recommendations for improvements that minimize rejections in those practices, with a goal of statewide standardization where applicable. The results must also be analyzed and compared with available national data and recognized best practices. The secretary of state's recommendations and reports must be made available to the public.
RCW 29A.60.300