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Beginning Jan. 1, officials at the Southern California sister ports of Los Angeles and Long Beach will face yet another challenge as they begin the second phase of their clean trucks plans: fewer trucks.

The Federal Motor Carrier Safety Administration has yet to announce the final fees for its Unified Carrier Registration Agreement, leaving states in financial limbo and some wondering if the program should be scrapped.

U.S. retail diesel prices dipped for the sixth straight week as the national average declined 2.4 cents to $2.748 a gallon, the Department of Energy reported.

Biodiesel producers are threatening to shut down their operations if the Senate does not approve a bill that would extend the $1 per gallon biodiesel tax credit due to expire on Dec. 31.

Biodiesel producers are threatening to shut down their operations if the Senate does not approve a bill that would extend the $1 per gallon biodiesel tax credit due to expire Dec. 31.

Beginning Jan. 1, officials at the Southern California sister ports of Los Angeles and Long Beach will face yet another challenge as they begin the second phase of their clean trucks plans: fewer trucks.

The U.S. Environmental Protection Agency last week declared that greenhouse gas emissions from vehicles and industrial facilities are a danger to human health, a first step the agency must take along the path to regulations limiting the levels of combustion by-products from tailpipes.