This bill amends existing law (RCW 35.02.020) to change procedures for filing petitions to incorporate a city or town. It is a procedural change, not a new crime or penalty change: it keeps a resident signature threshold but also permits a specified county legislative authority to file an incorporation petition without gathering resident signatures under narrow conditions. Under the amended provisions, a petition for incorporation generally must be signed by registered voters who reside within the proposed city or town equal to at least 10 percent of the number of voters residing in that area. Petitions must be filed with the county auditor of the county in which all, or the largest portion, of the proposed city or town is located. As an alternative, the county legislative authority of a county located west of the Cascade Mountains with a population of more than 900,000 but less than 2,000,000 may, by ordinance, file a petition without resident signatures if the area is fully contained within the urban growth boundary and the population is over 25,000. All petitions must be filed no later than 180 days after the public meeting on the proposed incorporation required by RCW 35.02.015, or the next regular business day if that 180th day is not a regular business day. The text uses terms such as "registered voters resident within the limits of the proposed city or town," "county legislative authority," and "urban growth boundary" but does not supply further definitions in the provided excerpt. The bill affects registered voters in proposed incorporations, county auditors, and county legislative authorities that meet the listed population and location criteria. Important context is missing: the excerpt does not identify which county meets the population criterion, does not clarify whether the "population over 25,000" refers to the proposed area or another unit, does not include the text of RCW 35.02.015 governing the public meeting, and does not state an effective date. The bill metadata references S-3785.1, Senate Bill 6181 (69th Legislature, 2026 Regular Session), sponsors Conway and Nobles, and referral to the Committee on Local Government.

If enacted, people trying to form a new city or town would generally need petitions signed by at least 10% of the registered voters who live inside the proposed boundaries and must get that petition filed with the county auditor within about six months of the required public meeting. At the same time, the governing body of a large west-of-the-Cascades county (one with more than 900,000 but less than 2,000,000 people) would get a new shortcut: it could put forward an incorporation petition by ordinance without gathering resident signatures for areas fully inside the urban growth boundary that have more than 25,000 people. That will mean grassroots organizers have a clear signature target and tight timing to meet, county auditors will see concentrated filing and verification work around the 180-day deadline, and the large county government gains a faster, lower-cost option to advance incorporations in qualifying areas—potentially speeding up creation of new cities and shifting planning, service responsibility, and budgeting decisions toward county-driven timelines. Key uncertainties remain that affect how parties should prepare: the bill text here doesn’t say which specific county fits the population range, whether the 25,000 threshold applies to the proposed area or some other unit, it omits the detailed public meeting rules it references, and it gives no effective date, so officials and organizers may not be able to predict timing or fully plan for the changes until those details are clarified.