WA SB6096

Cities and towns that charge water or sewer connection fees must adopt a deferred payment system for residential construction by 2030

Deferral applies to single-family detached, single-family attached, and multifamily residential building permits

Payment deferral options include delaying collection until final inspection or until certificate of occupancy is issued

Cities must withhold final inspection certification or certificate of occupancy until connection charges are paid in full

Connection charges covered include one-time capital and administrative fees plus labor, materials, and services costs for physically connecting to utility service