The kneejerk reaction for against any new standards has always been; “It can’t be done”. This new reg is great news to the Chinese who already have a popular priced electric car on the m,arket. The car is made by a…BATTERY manufacturer. All it needs is some quality upgrades for the US market.
The time scale is such that enough electric cars will be available this time around, and manufacturers will juggle their prices so that some cars (electric) lose money and others make up for it, just like the Big Three did when they sold compacts at a loss and made themoney on SUVs and trucks.
It will mean that the average cost of a car will go up.
P.S. An article in the New York Times around 1900 about AIR Pollution dealt with the piles of horse manure on the streets and the fact there would “not be enough farm land to feed all the horses needed for an expanding US economy”.