It appears they are not taking into account of the environmental impact of disposing of so many junk tires."A New California Proposal Aims to Regulate Aftermarket Tires"
"Replacement Tire Efficiency Program" would set standards requiring all aftermarket tires to be at least as efficient as the tires sold on new cars."
See here.
-Don- Baker, NV
There won't be any extra to dispose of. CA is regulating the future sale of new tires, not saying you have to replace your present tires now.It appears they are not taking into account of the environmental impact of disposing of so many junk tires.