I warned it was coming, so don't say you shouldn't be hearing this stuff yet.
President Obama is issuing guidance to the EPA to have them reconsider Bush administration policy that effectively blocked California and other states from imposing their own state emission policies upon the automobiles in those states. California and those other states that want to use their tougher than the EPA mandated federal standards claim that they should be allowed to set their own standards in order to address carbon emissions and help reduce pollution in their own regions.
I sympathize with these states and regions (the Baltimore, Washington, Northern Virginia region as an example is one of the areas that has pretty severe pollution problems and continues to fight the problem), but allowing all of these states to set their own standards is exactly the type of problems that the automotive industry doesn't need. Much like the petroleum industry that has to manufacturer seemingly hundreds of boutique blends of fuel to meet requirements in all of the various regions that have different requirements, the auto industry has to create vehicles that meet all of these different standards, then ship the vehicles to the right regions so they can be sold there.
Sure, it seems simple enough to manufacture a vehicle to meet the toughest possible standard which should automatically mean that those vehicles would meet standards in areas with weaker regulations, but that isn't necessarily the case. In making vehicles that meet these emission standards the automanufacters may have to sacrifice fuel efficiency which means they don't meet those requirements.
Personally, I'd rather have the states lobby the feds for the standards they want, then have the feds set standards for the entire country. I know it may mean that the standards are slower to be toughened up, but on the other hand the automotive industry would have a single set of rules to follow and that should make it easier to meet the requirements which can then be tightened up in ways that allow them to keep coming along slowly but surely.
Just my $0.02