Wash. Rev. Code § 70A.555.090
(1) By June 1, 2028, and each June 1st thereafter, each battery stewardship organization must submit an annual report to the department covering the preceding calendar year of battery stewardship plan implementation. The report must include:
(3) In addition to the requirements of subsection (1) of this section, with respect to each facility used in the processing or disposition of batteries collected under the program, the battery stewardship organization must report:
[ 2023 c 434 s 10.]