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Fourth-quarter gross domestic product growth was 5.6%, down slightly from a previous estimate of 5.9%, the Commerce Department said Friday.

Funding is the main obstacle to Congress’ passing a long-term highway bill, and several officials said last week it was unclear whether the bill could be done before the most recent extension of current law expires at the end of the year.

The White House Office of Management and Budget said last week it signed off on an electronic on-board recorders rule, clearing the way for the regulation to be published soon in the Federal Register.

Increased competition is driving down insurance rates and forcing providers to offer broader coverage to transportation firms, according to in-terviews with industry specialists and new surveys.

LOUISVILLE, Ky. — Navistar Inc. has introduced the ProStar Plus, a lighter, more fuel-efficient version of its ProStar Class 8 tractor.

The owner of the Ambassador Bridge connecting Detroit to Windsor, Ontario, has filed suit against the Canadian and United States governments and the U.S. Coast Guard claiming they are trying to get him to sell the bridge and prevent him from building a second span alongside the existing one.

Transportation Secretary Ray LaHood said the federal government is close to a decision on whether to allow Pennsylvania to toll Interstate 80 as part of that state’s transportation funding plan.

President Obama on March 18 signed into law an extension of the highway bill through the end of the year as part of a $17.6 billion package of tax incentives and bonding proposals aimed at spurring job creation.