California adopts nations toughest rules for diesel trucks

The state of California has adopted the nation's toughest emission requirements on heavy-duty trucks.


Despite opposition from truckers, the state Air Resources Board votes unanimously to require retrofitting or replacement of older rigs.

Truckers are protesting saying they would be bankrupted in a sinking economy.

The state Air Resources Board, voting unanimously for the measure, declared that the health benefits far outweigh the financial pain in a state that has the dirtiest air in the nation.

Diesel trucks are responsible for a third of the smog in California.

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