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The U.S. Environmental Protection Agency last week took the first step toward creating a national cap-and-trade system, proposing a new rule that would establish a federal system for reporting carbon dioxide emissions and other greenhouse gases produced by large stationary and mobile sources.

In its continued attack on greenhouse gas emissions, the California Air Resources Board recently proposed a rule cutting the “carbon intensity” of transportation fuels.

The Energy Department lowered its projection for diesel prices from a previous forecast and said it is possible that trucking’s main fuel will fall below gasoline in price this summer.

The California Air Resources Board urged federal regulators to reverse a Bush administration decision that blocks the state’s efforts to set its own limits on greenhouse gas emissions from automobiles, the Associated Press reported.

A new program at the Port of Charleston should mean cleaner air and save trucking companies money on fuel, the Associated Press reported.

WASHINGTON — Rep. Earl Blumenauer (D-Ore.), a member of the tax-writing House Ways and Means Committee, said the country should move quickly to a vehicle-miles tax but meanwhile should raise fuel taxes significantly, al-though the higher taxes shouldn’t take effect for at least two years.

Your story on the demise of RigMaster comes as no surprise in a sector of the truck market that has seen a drastic downturn of new business, mostly exacerbated by tightening of credit markets (2-9, p. 4).

WASHINGTON — Transportation Secretary Ray LaHood said federal officials should explore all options to finance infrastructure, but he later strongly rejected a fuel tax increase, at least while the economy is in recession.