The bill aims to amend existing motor vehicle emission standards in Washington State by establishing a more flexible approach that does not require the adoption of California's stringent standards. It mandates the Department of Ecology to create rules that align with the federal Clean Air Act while explicitly prohibiting the adoption of California's motor vehicle emission standards. The bill emphasizes the importance of decarbonizing the transportation sector in Washington but recognizes the need for a tailored approach that considers the state's unique economic and environmental context.

Additionally, the bill updates various provisions related to motor vehicle registration and emission testing. It modifies the requirements for issuing or renewing vehicle registrations, including the validation period for compliance certificates, and expands the list of vehicles exempt from emission testing. The bill also repeals previous legislation that mandated the adoption of California's standards, thereby allowing for a more localized regulatory framework. Overall, the legislation seeks to balance environmental goals with practical considerations for vehicle owners and the state's economy.

Statutes affected:
Original Bill: 46.16A.060, 46.37.470