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Fuel Fact of the Week

Fact #1207: In 2020 the South-Central Region Had the Highest Share of Heavy-Duty Diesel Trucks Equipped with Technologies to Reduce Nitrogen Oxides and Particulate Matter

In 2020 the U.S. South-Central Region (Texas, New Mexico, Oklahoma, Arkansas, and Louisiana) had the highest share (54.5%) of registered heavy-duty diesel trucks equipped with selective catalytic reduction (SCR) and particulate matter (PM) control technologies. SCR reduces emissions of nitrogen oxides (NOx). EPA regulations have required all heavy-duty diesel trucks since model year 2010 to have these emission reduction technologies. Three regions—South-Central, Great Lakes (53.6%), and Mid-Atlantic (52.3%) surpassed the national average of 49%.

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Past Fuel Facts of the Week.

Question of the Month

How is fuel economy determined and reported for alternative fuel vehicles?

Last month we learned about how the U.S. Environmental Protection Agency (EPA) determines and reports conventional light-duty vehicle fuel economy ratings. While alternative fuel vehicle (AFV) fuel economy testing is largely similar to that of conventional fuels, the EPA makes some adjustments to account for different vehicle technology and fuel energy content. By tailoring AFV fuel economy testing and reporting, the EPA is able to provide apples-to-apples comparisons and allow consumers to make informed decisions.

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