This bill adds a new section to chapter 84.36 RCW creating a temporary property tax exemption for new manufacturing facilities or additions to existing manufacturing facilities. Buildings, machinery, equipment, other personal property used primarily for manufacturing, and the land reasonably necessary for the facility are exempt from property tax for six assessment years after becoming operational. If the facility is a certified "green manufacturing facility" or exports goods through Washington seaports, the exemption lasts eight assessment years. Claims must be filed with the county assessor on forms prescribed by "the department," the assessor verifies and approves claims, the exemption is valid for the stated period and may not be renewed, the department may adopt rules, and the new section expires January 1, 2036. Section 2 applies to taxes levied for collection in calendar years 2026 through 2035, and the bill states RCW 82.32.808 does not apply to this act. The bill defines "green manufacturing facility" as a facility certified by a state or nationally recognized organization that rates sustainability, and it relies on the statutory definition of "manufacturing facility" in RCW 82.04.120. It adds to chapter 84.36 RCW and references chapter 64, Laws of 2021 (the Washington BEST manufacturing act). County assessors and owners/operators of eligible facilities are the primary actors affected; "the department" is tasked with prescribing forms and rulemaking but is not named in the text. The extracted material does not identify which organizations qualify as certifiers of green facilities, does not reproduce the definition of "manufacture" from RCW 82.04.120, does not provide the content of RCW 82.32.808, and does not define the "special valuations" mentioned in Section 1.

If enacted, owners or developers of new manufacturing buildings or additions that start operating in the covered period would likely pay no property tax on the buildings, machinery, equipment, and associated land for six years, or eight years if the facility is certified as “green” or exports goods through Washington seaports. That would lower near-term operating and capital costs and make building or rehabbing manufacturing space more financially attractive between about 2026 and 2035, but the exemption is temporary and ends under the law on January 1, 2036. County assessors would need to receive, verify, and approve exemption claims on forms set by an unspecified state department, increasing administrative workload and shifting some verification responsibility to local governments. Local property tax revenues would be reduced for exempted sites during the exemption period, which could affect funding for local services. Key implementation details are unclear from the text provided: the responsible state department is not named, specific sustainability certifiers are not identified, and the exact legal definition of “manufacturing facility” referenced elsewhere is not included, which could create uncertainty about which projects qualify.