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The transportation industry’s transition toward low- and zero-emission vehicles and alternative fuels has entered an uncertain period as the U.S. regulatory landscape shifts rapidly.

The dominant North American oil field services provider told investors April 22 on a conference call that tariffs will have an impact of 2 to 3 cents per share during the second quarter.

The national average diesel price fell 4.5 cents a gallon to $3.534, according to U.S. Energy Information Administration data released April 22.

President Donald Trump's commitment to reduced federal regulations is expected to lead to a shift in how transportation policy is handled, experts detailed during a discussion April 21.

Four governors and U.S. senators from 10 states are urging EPA Administrator Lee Zeldin in separate letters to establish robust future Renewable Fuels Standards.

Maryland and Massachusetts have temporarily scuttled enforcing their California-based heavy truck emissions laws in deference to manufacturer difficulties.

The operator of the Keystone oil pipeline brought the conduit back into service, putting an end to a weeklong outage caused by an estimated 3,500-barrel spill in rural North Dakota.

Fuel shipments from Texas headed to Mexico have ground to a halt as the Mexican government cracks down on imports over tax payments.

Mississippi Gov. Tate Reeves enacted legislation to implement rolling 3-cent annual hikes in gas and diesel excise taxes starting July 1 in a package of tax laws, including one eliminating state income tax.