This bill amends and re-enacts provisions of the state building code law (including changes to RCW 19.27.031 and RCW 19.27.560) and makes several procedural and rulemaking changes. It requires the State Building Code Council to follow a three-year model-code adoption cycle, act on new model-code editions no later than 30 months after publication, generally limit substantive changes to that cycle, allow for limited interim or emergency off-cycle amendments, solicit input from first responders, and collaborate with specified state and local agencies. The council must adopt the International Wildland Urban Interface Code (IWUIC) by rule by November 1, 2029, once statewide wildfire hazard and base-level wildfire risk maps required by RCW 43.30.580 are completed; local jurisdictions may adopt the IWUIC earlier under specified conditions, and jurisdictions issuing permits for parcels designated high or very high hazard must apply the IWUIC as specified. The council’s work on defensible space provisions must be coordinated with Ecology, Fish and Wildlife, Commerce, and local governments to align with other state environmental programs. The bill also creates mapping, technical assistance, and grant program responsibilities for a state department (the text in the provided material does not name the department). That department must establish and maintain a statewide wildfire hazard map and county base-level wildfire risk maps, publish the maps and the assessment criteria and analysis online, permit a method for local governments to update maps with fire marshal approval, and coordinate with regional fire defense boards and the Department of Natural Resources prior to final map approval. To the extent practical within existing resources, the department must provide a technical assistance program to help jurisdictions develop findings and maps and must develop and administer a grant program, subject to available funding and legislative appropriations. Local amendments to the IWUIC are permitted to meet local conditions, but amendments affecting single-family or multifamily residential buildings are not effective without approval by the building code council per RCW 19.27.074(1)(b). The provided material is incomplete: the department is not identified in these extracts, the full text of RCW 43.30.580 is not included, and portions of the bill text (including subsection (7) in Sec. 2) are cut off, so some details and any additional provisions are uncertain.

If enacted, the state will create official statewide wildfire hazard and county risk maps, publish the criteria and analysis, and require the State Building Code Council to adopt the International Wildland Urban Interface Code by rule after those maps are finished (target date Nov. 1, 2029). Counties, cities, and towns will need to complete or update local maps and, once the statewide maps are final, align local mapping criteria with the statewide approach; jurisdictions issuing permits on parcels mapped as high or very high hazard will have to apply the IWUIC requirements. The Department (unnamed in the excerpts) must provide technical help as resources allow and run a grant program to help local governments develop maps, while the Department of Natural Resources must coordinate map review with regional fire defense boards and the state fire marshal helps set mapping criteria. The practical effects are more mapping and new building-permit requirements for local governments, building officials, and developers, which can mean extra planning work, costs to produce and update maps, and potential construction or permitting costs to meet IWUIC standards — though grants may offset some costs if funded. The scope of assistance and funding, exact application rules, and some timeline details are not specified in the excerpts, so how much local budgets and workloads will change is unclear.