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The United States has established fuel economy and GHG emissions standards for both light- and heavy-duty vehicles, which have reduced transportation GHG emissions significantly in recent years. Assuming oil prices are stable or increasing from recent low levels, current policies will reduce emissions for years to come as vehicle fuel
The United States has established fuel economy and GHG emissions standards for both light- and heavy-duty vehicles, which have reduced transportation GHG emissions significantly in recent years. Assuming oil prices are stable or increasing from recent low levels, current policies will reduce emissions for years to come as vehicle fuel economy and GHG emissions standards continue to tighten, older inefficient vehicles are replaced, and technologies improve due to long-term investments in developing lower- emissions vehicles.
; fuel economy and emissions standards in light-, medium- and heavy-duty vehicles