EPA won't allow 17 States to set emission standards for cars

The Environmental Protection Agency on Wednesday denied California and 16 other states the right to set their own standards for carbon dioxide emissions from automobiles.

The E.P.A. administrator, Stephen L. Johnson, said the proposed California rules were pre-empted by federal authority and made moot by the energy bill signed into law by President Bush on Wednesday. Mr. Johnson said California had failed to make a compelling case that it needed authority to write its own standards for greenhouse gas emissions from cars and trucks to help curb global warming.

The 17 states — including New York, New Jersey and Connecticut — had waited two years for the Bush administration to issue a ruling on an application to set stricter air quality standards than those adopted by the federal government. The decision, technically known as a Clean Air Act waiver, was the first time California was refused permission to impose its own pollution rules; the federal government had previously granted the state more than 50 waivers.

The new federal law will require automakers to meet a 35-mile-per-gallon fleetwide standard for cars and trucks sold in the United States by 2020. It does not address carbon dioxide emissions, but such emissions would be reduced as cars were forced to become more fuel efficient.

Twelve other states — New York, New Jersey, Connecticut, Maine, Maryland, Massachusetts, New Mexico, Oregon, Pennsylvania, Rhode Island, Vermont and Washington — had proposed standards like California’s, and the governors of Arizona, Colorado, Florida and Utah said they would do the same.

If the waiver had been granted and the 16 other states had adopted the California standard, it would have covered at least half of all vehicles sold in the United States.