This bill amends existing law (RCW 1.16.050) by adding a new recognized "trick-or-treat day" and by inserting legislative findings. The bill adds a new section with findings about Halloween timing and then changes RCW 1.16.050 to list "trick-or-treat day"—defined as the last Saturday in October, or the last Friday in October if cities, towns, and counties authorize that date due to inclement weather—as one of the days recognized in subsection (7). The change is a statutory recognition of an observance in the holiday statute; it does not create a new crime or change criminal penalties. The bill specifies that the trick-or-treat day is a recognized day but may not be considered a legal holiday for any purpose. The amendment interacts with existing holiday and personnel provisions in RCW 1.16.050 and related references (including RCW 43.41.109 for the office of financial management rule on "undue hardship"). It notes affected groups such as state employees, employees of political subdivisions, school district and certain higher education nonclassified employees, and local governments (which may authorize the alternate Friday). Existing rules about which days are paid legal holidays, employees' ability to select additional paid or unpaid holidays for conscience or religious reasons, and the substitution of weekdays when holidays fall on weekends remain in the statute as referenced. The bill is identified as S-0452.1, Senate Bill 5159 (69th Legislature 2025 Regular Session), with the changes presented in Sec. 1 (findings) and Sec. 2 (amendment to RCW 1.16.050). The text provided does not include specific implementation rules, the content or timing of guidelines to be promulgated by personnel authorities, or other enforcement procedures.

If enacted, the state will officially designate a weekend trick-or-treat day — normally the last Saturday in October, or the last Friday if a city, town, or county chooses that because of bad weather — which encourages communities to hold primary Halloween activities and day‑time road closures on that weekend instead of on October 31 during the school week. Families and children are the main beneficiaries in practice, since community events shifted to the weekend could reduce school‑day disruption and let parents plan earlier, daytime activities; local governments, police, public transit and school districts are most affected because they may need to approve event dates, pass local ordinances or resolutions to authorize a Friday change, and reallocate or pay for staffing and traffic control for weekend events. The designation does not create a new paid state holiday, so state and local employers’ existing holiday rules and employees’ current options for selecting paid or unpaid holidays remain in place, meaning no guaranteed new paid leave for workers; any added costs would come from local decisions to staff, close roads, or run community events. The bill includes findings about safety and reduced learning loss but gives no detailed implementation steps or named authority for issuing guidelines, so the exact administrative duties, timelines, and funding responsibilities for carrying out changes are uncertain.