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PHOENIX — The Pipeline and Hazardous Materials Safety Administration sent its new proposed “wetlines” regulation to the White House Office of Management and Budget on Oct. 15 for review.

American Trucking Associations said Friday it has adopted a carbon-emissions control policy supporting a national fuel-economy standard for trucks, rather than government actions to increase fuel prices or alternative-fuel mandates.

A conference in Washington this week will reflect on the last 10 years of clean diesel technology and its effect on air quality, its organizers said.

A coalition of industry groups, including American Trucking Associations, touted its own voluntary efforts toward improving environmental sustainability as part of its push toward what it called “responsible” energy policies.

The U.S. trade deficit widened by 8.8% in August, the Commerce Department said Thursday.

The U.S. diesel average price rose 1.7 cents to $2.96 a gallon last week, the second straight week it has inched upward, the Department of Energy reported.

The biodiesel industry suffered a setback when supporters in the U.S. Senate failed to attach an amendment to the recently-adopted Small Business Jobs Act that would have restored the industry’s tax credit.

Federal regulators for the first time in more than 30 years are proposing a redesign of the fuel economy label that consumers see on the window of new passenger vehicles and light trucks.

The California Air Resources Board staff is recommending an extension of the compliance deadlines for the state’s emission-reduction rule for 2003 transport refrigeration units.