The reason given is that in lieu of the recent energy bill, there's no need to have each state create their own rules, even if their rules are better than the Federal Government's. Or so said head of the EPA Stephen L. Johnson. Johnson's decision, of course, had nothing to do with intense lobbying by car companies, who spent part of last fall crying to Dick Cheney like the little bitches they are. Johnson, actually, had a reputation for not being an Administration stooge (well, somewhat) but we all know what happens when Dick wants something to happen.
The best part of the story is that Johnson's move was made entirely by him all willy nilly-like, without any advising or consenting by the others in the EPA. Johnson's decision was so willy-nillly-like, that he didn’t even send back an official document to Arnie but just posted a note about it on Arnie’s Facebook Wall. His underlings were so thrilled by the choice that they went and did what every other disgruntled employee does-- call the press and let everyone know their boss is a jackass. In a press conference yesterday, Bush defended Johnson's decision and said it was Johnson's decision because if there's anything one jackass likes, it's another jackass.
In response, California is suing the federal government. We'll see how well that goes.