DECISION BACKING L.A. CLEAN-FLEET RULES MAY NOT STAND, OBSERVERS SAY

A U.S. district court judge's ruling earlier this month may not survive after the court essentially reversed a Supreme Court decision that struck down the California South Coast air district's clean-fuel fleet rules, according to sources tracking the case. The ruling -- which both sides agree opens the door for regulators nationwide to require local agencies to buy alternative-fueled vehicles -- is expected to be challenged by engine makers through either an amended motion to the district court or an...