Changes the designation of the public holiday of Columbus day to Indigenous People's Day

This bill changes the official name of the second Monday in October holiday from "Columbus Day" to "Indigenous People's Day," effective October 2025. It updates multiple state laws to replace "Columbus Day" with "Indigenous People's Day" in lists of observed public holidays, including those governing flag display, transportation regulations, and town appropriations. The change affects state government operations, public institutions, and related administrative procedures that reference this holiday. It does not alter the date of the holiday or impact private businesses. The policy change is limited to the official designation in state statutes.