Some cars sold in the state have already been modified to meet the California rules.

The California rules are not now in effect because of a court challenge.

But the people who make cars and gasoline say the California rules are not the answer.

At the same time, car manufacturers said adopting the California rules would add about $100 to $1,000 to the price of a car.

When the new California rule took effect in 1991, the total monthly grant of $901 was cut to $694.

The car companies say they don't know how to build the cars the California rules will require, especially electric models.

By 1999, 2 percent of the cars sold in areas with the California rules will have to be battery-powered.

If the answer is yes, is the California rule constitutional?

With the California rules, the report said, "fleetwide emissions continue to decline at least through the year 2015."

But state officials yesterday moved closer to enacting the California rules over the whole region.