The bill amends RCW 19.27.560 to address the impacts of certain codes on manufactured housing inventory, specifically concerning the adoption of the International Wildland Urban Interface Code. Key changes include the specification of fire-resistant construction requirements for roofs, exterior walls, and accessory structures, with particular attention to materials and construction methods that enhance safety against wildfires. The bill also updates certain numerical thresholds related to fire apparatus access and driveway requirements, ensuring that these align with current safety standards.

Additionally, the bill introduces provisions that exempt manufactured housing units approved prior to March 15, 2024, from the requirements of RCW 19.27.560, with the exception of certain exterior structures like decks and porches. The state building code council is tasked with the authority to adopt or amend rules regarding these exemptions and must notify relevant parties of any changes. The act is declared an emergency measure, taking effect immediately to ensure the preservation of public safety and support for state institutions.

Statutes affected:
Original Bill: 19.27.560