No offense Oz, but using your logic you should sell your Mustang and your (IIRC) Buick and replace them with hybrid or electric vehicles. The pollution in Ca does not come from old cars.
Yes, the LA basin does have the worlds most unique combination for smog. But it is not from old hobbyist cars. It is from the people who buy POS road hazards. These vehicles could probably be eliminated from the road using existing laws and regulations, but no one dares be un PC enough to tell low income people their car is a hazard or a polluter.
This program doesn't target the polluting vehicles. The people whose vehicles pollute can apply for either CAP (Consumer Assistance Program) or an economic waiver. With CAP a low income person gets money from the state to either repair the vehicle, or they can "retire" the vehicle. Either way that costs ME (Joe F'in Taxpayer) money. Under the economic hardship waiver they can REGISTER THE CAR IMMEDIATELY AND HAVE UNTIL THEIR NEXT SMOG CHECK TO CORRECT THE ISSUES. That's 2 years to pollute the precious air WITH the Governments blessing. So, this law will do nothing except to get more hard working folks that enjoy owning old cars to pony up the dough for a friggin smog check and the related BS that it brings.
If they were serious about cleaning up the air they would do away with these "pollute with blessing" programs as well as require all state, mass transit, etc vehicles to test.