Two days ago, the U.S. Environmental Protection Agency issued a ruling that existing limits on tailpipe emissions of carbon dioxide for 2022 through 2025 should remain in place. The EPA's carbon limits correspond exactly to NHTSA standards for corporate average fuel economy, and the EPA decision was widely (if incorrectly) reported to be about... EPA keeps car-emission rules to 2025; what happens under Trump?
Two days ago, the U.S. Environmental Protection Agency issued a ruling that existing limits on tailpipe emissions of carbon dioxide for 2022 through 2025 should remain in place. The EPA's carbon limits correspond exactly to NHTSA standards for corporate average fuel economy, and the EPA decision was widely (if incorrectly) reported to be about... 
The U.S. Environmental Protection Agency (EPA) has decided to maintain existing Corporate Average Fuel Economy (CAFE) standards through 2025. Enacted by the Obama Administration in 2012, the standards call for automakers to achieve a fleet average of 54.5 mpg (equivalent to about 38 mpg in the real world) by that year. The decision follows the... 
Are you driving a car or a truck? The answer may be harder to determine than you think. U.S. safety and emissions regulations generally split cars and trucks into two categories, but the line between those two vehicle types has become blurred in recent years. That's thanks to the car-based crossover utility vehicle, which now represents one of the... 
Stricter global emissions standards have led many automakers to downsize engines, but that trend may be about to reverse itself. Cutting displacement is a relatively straightforward way to improve fuel economy. But as regulators move toward adoption of more realistic testing procedures in the wake of the Volkswagen diesel scandal, automakers may... ![Chris Grundler, director of EPA Office of Transportation and Air Quality [photo: EPA via Flickr]](http://images.hgmsites.net/tmb/chris-grundler-director-of-epa-office-of-transportation-and-air-quality-photo-epa-via-flickr_100568318_t.gif)
Current Corporate Average Fuel Economy standards require U.S. automakers to achieve a fleet average of 54.5 mpg (equivalent to roughly 40 mpg on the window sticker) by 2025. But who ensures that companies are actually complying with the CAFE mandate? As automakers work to meet stricter emissions standards, the little-known staff of regulatory... 
The lobbyists for automakers have made their views on Corporate Average Fuel Economy (CAFE) standards through 2025 quite clear. The majority of carmakers would prefer to see those standards relaxed, delayed or altered. Today, they call for a fleet average of 54.5 mpg (or about 38 mpg on window stickers) for vehicles sold in the U.S. by 2025. DON'T...