I'm happy to see California do this and hope other states wise up to the damage being done by these pollution machines. Drives me bonkers every week as neighbors and their landscapers fire up gas powered leaf blowers, edge trimmers and lawnmowers. Not only are they polluting the air and creating a noise nuisance, but for most yards they are using up a valuable energy resource for a task better suited for hand or electric tools. Think of how much more enjoyable yard work would be if you didn't have to listen to the deafening roar of everyone's internal combustion engines all the time. Rakes, push mowers and pruning shears aren't that much more effort - and most of us could use the extra exercise. If I charged these landscapers for all my lost productive time due to their noise and the impacts on my health from all the dust/noise/air pollution, an investment in batteries or extension cords looks pretty cheap.