The Air Resources Board will hold a public hearing on proposed amendments to Cal. Code Regs. tit. 13, §1961, California Exhaust Emission Standards and Test Procedures for 2001 and Subsequent Model Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles. The proposed amendments would provide affected manufacturers with the ability to demonstrate compliance based on their fleet average of vehicles produced and delivered for sale in California, the District of Columbia, and in all states that have adopted and can enforce California's greenhouse gas emission standards, pursuant to CAA §177. The hearing will be September 24, 2009. http://www.arb.ca.gov/regact/2009/ghgpv09/ghgpv09.htm.