This bill amends existing law (RCW 19.27.110 and 2003 c 291 s 4) to assign and clarify who administers and enforces the International Fire Code in unincorporated areas. It makes county governments responsible for administration and enforcement there, allows a political subdivision or municipal corporation that provides fire protection under RCW 14.08.120 to take responsibility for enforcement on its own facilities, and permits fire protection districts or regional fire protection service authorities that meet a revenue threshold to assume enforcement responsibilities in unincorporated areas within their jurisdiction. The change is an administrative and procedural one: it allows a fire protection district or regional authority with more than $10,000,000 in annual revenues (or a newly formed regional authority whose participating jurisdictions cumulatively met that threshold for the prior three years) to assume enforcement upon six months’ advance notice to the county. It lists specific responsibilities such as cause-and-origin investigations, plan review, and building inspections, allows use of interlocal agreements under chapter 39.34 RCW to assume all or part of the duties, authorizes counties and assuming districts/authorities to set fees sufficient to cover inspection and enforcement costs, and requires an assuming district or authority to offer equivalent positions to county fire marshal office workers displaced by the administrative change. The bill also includes legislative intent statements that the provisions do not limit other jurisdictions’ fire prevention authority and do not expand counties’ powers to suppress or extinguish fires beyond existing constitutional or statutory authority. Important context is missing from the extracted text: definitions of key terms (for example, how "annual revenues" are calculated and what constitutes an "equivalent position"), the full texts of the referenced RCWs (19.27.111, 14.08.120, and chapter 39.34), and whether other sections or amendments appear elsewhere in the bill.

If enacted, counties would remain the default agency enforcing the International Fire Code in unincorporated areas, but fire protection districts or regional fire authorities that have averaged more than $10 million in annual revenue over the prior three years (or whose forming jurisdictions together met that threshold) could choose to take over those enforcement duties after giving six months' notice. Those districts or regional authorities (and counties) could charge fees to cover inspection and administration costs, would take on investigations, plan review and building inspections, and would be required to offer equivalent positions to any county fire marshal staff displaced by the change. The people and organizations most affected are county governments and their fire marshal offices (which could lose duties and fee revenue and face staff displacement), eligible fire districts and regional authorities (which could gain responsibilities and fee revenue but also new operational costs and hiring obligations), and political subdivisions that provide fire protection (which may handle enforcement on their own facilities). Important details needed to predict exact budget or staffing impacts are missing, including how "annual revenues" are calculated and what precisely counts as an "equivalent position," so some practical effects will depend on later rules or agreements.