Wash. Rev. Code § 70A.208.150
(4) For purposes of determining whether recycling performance targets are being met, except as modified by the department, a plan must provide a methodology for measuring the amount of covered material sent for recycling at the point at which material leaves a material recovery facility or other processing facility and must account for:
(5)
(c) The department may only approve the producer responsibility organization's proposal to count towards recycling performance targets the materials sent to a facility that uses an alternative recycling process if the department determines that the alternative recycling process:
(ii) Provides protection for the environment and human health with consideration of inputs and outputs, including as measured against all of the following criteria:
(d)
(7) For purposes of determining whether reuse performance targets are being met, a plan must provide a methodology for measuring the amount of reusable covered materials at the point at which reusable covered materials meet the following criteria as demonstrated by the producer and approved by the department whether the:
(10)
(a) The department must establish statewide requirements and a date by which those requirements must be met for each of the following categories:
(b) The department may use the following information and criteria when establishing statewide requirements under (a) of this subsection:
[ 2025 c 316 s 115.]