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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.

Charles “Shorty” Whittington, immediate past chairman of American Trucking Associations, was among the officials who stressed to the Obama administration the importance of investing in the nation’s roads and bridges during the president’s recent Washington jobs summit.

The California Air Resources Board last week began to look into changing the state’s diesel emissions rule, which could give truckers hit by the recession more “flexibility” or even partial delays of one or two years in complying.

President Obama has nominated David Strickland to be the next administrator of the National Highway Traffic Safety Administration, the White House announced.

WASHINGTON — The Federal Motor Carrier Safety Administration is preparing to propose requiring “a much larger population of carriers” to use electronic onboard recorders to monitor driver hours-of-service than it earlier envisioned, an agency official said.

U.S. consumer confidence improved in December for the first time in three months, according to the Reuters/University of Michigan monthly consumer sentiment index released Friday.

Business inventories rose in October for the first time in a year, the Commerce Department said Friday.

The price of goods imported to the United States rose 1.7% in November, the most in five month, the Labor Department said Friday.

Retail sales rose 1.3% in November, the Commerce Department said Friday.