Country:United States
Policy status:In Force
Date Effective:2004
Policy Type:Regulatory Instruments>Codes and standards
Policy Target:Transport>Passenger
Agency:California State Government
Legal References:California State - Assembly Bill No. 1493

On 22 July 2002, AB 1493 ("Pavley Global Warming Bill") directed the California Air Resources Board (ARB) to adopt regulations that would achieve the "maximum feasible and cost-effective reduction of greenhouse gas emissions from motor vehicles." The cost-effective reduction measures identified by the staff included discrete variable valve lift, dual cam phasing, turbocharging with engine downsizing, automated manual transmissions and camless valve actuation. The ARB expects that the regulations will add around USD 1000 to the cost of a new car in 2014 but that the increased up-front cost will be more than offset by decreased operating costs over the life of the vehicle. On 24 September 2004, CARB finalised the regulations, which will affect new cars sold in California beginning with model year 2009. The regulations will result in a 23% reduction in greenhouse gas (GHG) emissions from new vehicles by 2012 and a 30% reduction in GHG emissions from new vehicles by 2016. In June 2009 the US EPA granted a waiver allowing California to regulate GHG emissions from motor vehicles within the state, beginning with the 2009 model year. Although this waiver decision allows California to set its own standards for motor vehicles and for other states to follow the California standard, California and the other states have agreed to conform to the federal standards announced by President Obama in May 2009.

Last modified: Wed, 10 Jun 2015 12:17:15 CEST