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Staff Publications

Vehicle Tailpipe Emissions Standards

Subject
Transportation & Motor Vehicles
Published
11/20/2018

This memorandum discusses tailpipe vehicle emission standards in the United States and the current regulations for light-duty vehicles. 

The effective date for bills enacted without a safety clause is August 6, 2025, if the General Assembly adjourns sine die on May 7, 2025 (unless otherwise specified). Details