It seems that they have exhausted all other forms of smog reduction so now they are going after us. Every truck base plated in CA must meet 2007 emissions by 2009,and they want every truck that travels in and out of CA to be able prove a LOW NOX reflash of the computer. I have been making calls to the various Govt. agencies involved and get the same response, that this is real and it is going to happen. Here is a link to an info page (aimed at dump trucks) but you get the idea.
http://www.cdtoa.org/pdf_gov/CTN_09TruckSurvey.pdf
Good thing I didn't buy that 95 Pete I was looking at, looks like it will be worhtless in CA by 2010.