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The Federal Highway Administration has withdrawn its rule that would have required state departments of transportation and metropolitan planning organizations to report year-over-year changes in carbon dioxide emissions on U.S. interstates and major highways.

The California Air Resources Board has approved amendments to toughen state standards on heavy truck smoke opacity limits as well as require motor carriers with two or more trucks to report their annual smoke test results to the agency.

Meritor Inc. announced its tire inflation system with ThermALERT is a standard/preferred option on Vanguard dry van and CIMC refrigerated trailers.

Advances in tracking technology are enabling fleets to better assess driver performance and fairly reward them for fuel-efficient driving.

The Federal Motor Carrier Safety Administration has granted a five-year exemption from the 30-minute rest-break requirement for trucks hauling petroleum products and will allow fuel trucks to operate 12 hours a day without triggering the requirement under certain conditions.

ATLANTA — Michelin North America has unveiled a trailer aerodynamics package for dry van and refrigerated trailers, a five-piece kit that incorporates side skirts, trailer-end fairings, aerodynamic mud flaps and a wake reducer to deliver what the company said is up to 7.4% improvement in fuel efficiency.

Mayors across America still are waiting for the White House’s infrastructure plan as cities continue to cope with highway congestion. Many of them will be in Washington this week for the U.S. Conference of Mayors’ winter meeting. Here's a look at the week ahead for trucking on Capitol Hill.

WASHINGTON — The chorus of support for funding highways and infrastructure grew louder last week with the U.S. Chamber of Commerce unveiling a four-point plan that would raise fuel taxes, expedite the permitting process, facilitate more private investment and help construction firms address a shortage of skilled labor.

Trucking firms are revved up for 2018, with predictions of tight capacity and strong demand for freight hauling setting the stage for an anticipated big year ahead for the industry, and indicators pointing to a potentially sustained period of business expansion in the United States and around the globe.