Wash. Rev. Code § 70A.208.110
(1)
(2) In conducting a needs assessment, the department must:
(d)
(3) A preliminary needs assessment must be completed for a preceding period of no less than 12 months and no more than 36 months that includes:
(c) An evaluation of what services related to the requirements of this chapter are currently being delivered in each county and city planning under chapter 70A.205 RCW and what the costs are for those existing services, including:
(4) Each needs assessment after the preliminary needs assessment must include at least the following:
(a) An evaluation of:
(c) Proposals for a range of outcomes for each covered materials type to be accomplished within a five-year time frame in multiple units of measurement including, but not limited to, unit-based, weight-based, and volume-based, for each of the following:
(d) Proposals for a range of outcomes for the categories established in RCW 70A.208.150(10) that consider:
(iv) The need for continuous progress toward:
(i) An inventory of the current system, including:
(j) An evaluation of investments needed to increase waste reduction, refill, reuse, recycling, and composting rates of covered materials according to the range of proposed performance targets and statewide requirements, including what new or expanded services and infrastructure are needed in each county and city planning under chapter 70A.205 RCW, and the estimated total costs of investments needed, that would also:
(o) An assessment and evaluation of current best practices and efforts on:
(7)
[ 2025 c 316 s 111.]