Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 33. Chapters: United States Environmental Protection Agency, Best Available Control Technology, Low-carbon fuel standard, Bharat Stage emission standards, European emission standards, United States emission standards, Zero-emissions vehicle, National Emissions Standards for Hazardous Air Pollutants, Vehicle emissions control, New Source Performance Standard, Super Ultra Low Emission Vehicle, AdBlue, Partial zero-emissions vehicle, Indice Metropolitano de la Calidad del Aire, Low-carbon emission, Zero emission, GREET Model, Zero-emission rocket propulsion, FTP-75. Excerpt: A low-carbon fuel standard (LCFS) is a rule enacted to reduce carbon intensity in transportation fuels as compared to conventional petroleum fuels, such as gasoline and diesel. The most common low-carbon fuels are alternative fuels and cleaner fossil fuels, such as natural gas (CNG and LPG). The main purpose of a low-carbon fuel standard is to decrease carbon dioxide emissions associated to fuel-powered vehicles considering the entire life cycle ("well to wheels"), in order to reduce the carbon footprint of transportation. The first low-carbon fuel standard mandate in the world was enacted by California in 2007, with specific eligibility criteria defined by the California Air Resources Board (CARB) in April 2009 but taking effect until January 2011. Similar legislation was approved in British Columbia in April 2008, and by European Union which proposed its legislation in January 2007 and which was adopted in December 2008. The United Kingdom is implementing its Renewable Transport Fuel Obligation Program, which also applies the concept of low-carbon fuels. Several bills have been proposed in the United States for similar low-carbon fuel regulation at a national level but with less stringent standards than California. As of early 2010 none has been approved. The ...