The administration also proposed a withdrawal of California's Clean Air Act preemption waiver.
The proposal from EPA and the National Highway Traffic Safety Administration outlines a series of options for the auto rules. CFA Executive Director Jack Gillis says lower fuel economy standards mean families have to pay more to keep their cars running. They claimed the reduced standards would make new cars more affordable. "We applaud the president and the administration for releasing this much anticipated proposal that includes a variety of standards for public consideration", they said. California and other states are already suing the EPA. Under the Trump administration's preferred proposal, that would drop to 29.6 miles per gallon, a reduction in nationwide fuel efficiency of about 21 percent. However, the Trump administration's EPA proposal would require California to abide by federal rules, rather than set its own.
California - which is playing a world-leading role in setting aggressive climate goals and building strong coalitions of partners committed to curbing carbon pollution in both the United States and around the globe - will convene the Global Climate Action Summit in San Francisco in September.
Schwarzenegger added that he's "sick and exhausted of these fake conservatives who believe in states' rights to make their own policies - as long as state policy is to pollute more".
Simon Mui, a senior scientist at the National Resources Defense Council, a group that opposes the change to the fuel standards, calculates that the change will have the net effect of reducing the average real world fuel economy of American automobiles by about 8 miles per gallon in 2025 relative to what it would be if Obama era standards were kept in place. Assuming, strictly for illustration purposes, a gasoline price of three dollars per gallon, that would result in an increased annual fuel expenditure of about $318. The impact of freezing those targets for six years, as the administration favors, would be enormous.More news: HISTORY: Apple Becomes First TRILLION DOLLAR COMPANY in US History
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The administration also projects the efficiency rules would drive up the price of cars enough to push some buyers out of the market, leaving them to remain in older vehicles lacking life-saving new technologies like assisted braking and blind spot warning.
Environmental groups who support the gas mileage standards that aimed to reduce air pollution slammed the proposal. The CARB website suggests the state should be allowed to set its own standards, owing to its "unique geography, weather, and expanding number of people and vehicles".
The proposal to roll back anti-pollution efforts is in line with President Donald Trump's decision past year to abandon the 2015 Paris Agreement, under which countries agreed to take steps to mitigate global warming. An Obama-era analysis found no harm to safety from making cars more efficient.
The states that have adopted California's emission rules together make up about one third of the USA auto market.