WA SB5159

Establishes "Trick-or-Treat Day" as the last Saturday in October, with cities, towns, and counties authorized to move it to the last Friday in October due to inclement weather

Adds Trick-or-Treat Day to Washington's list of recognized days that are not legal holidays for any purpose

Aims to reduce school absenteeism and learning loss associated with Halloween falling on weekdays

Intended to improve public safety by allowing trick-or-treating to begin earlier before nightfall and enabling road closures on non-commuter days