The U.S. Environmental Protection Agency has finalized a proposal to require that manufacturers of heavy-duty engines and vehicles begin reporting carbon dioxide emissions from engines beginning with model year 2011. Manufacturers also will be subject to reporting of methane emissions in model year 2012 and nitrous oxide emissions in 2013.
As proposed earlier, EPA chose not to require fleet operators or state and local governments to report in-use travel activity or other data related to greenhouse gases.
The rule applies to all vehicles not covered by a regulation EPA and the U.S. Department of Transportation jointly proposed last week to set fuel economy and greenhouse gas emissions standards through model year 2016 for cars and light-duty trucks.
For EPA’s discussion of greenhouse gas emissions by mobile sources – such as trucks, aircraft and marine engines – click here.