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Two interstate companies operating heavy-duty truck fleets in California agreed to legal settlements with the U.S. Environmental Protection Agency.

Nikola Corp. founder Trevor Milton was ordered to spend four years behind bars for lying to shareholders about the electric truck maker’s progress.

The Biden administration released long-awaited guidance on Dec. 15 around tax credits for aviation fuel that reduces emissions of greenhouse gases compared with fuel made from crude oil.

American Trucking Associations CEO Chris Spear said European transportation leaders are facing regulatory challenges similar to those confronting U.S. fleets.

The Biden administration as early as Dec. 15 will release policy guidance that will help determine the economic viability of producing lower-emitting jet fuel from corn and other crops.

BP asked U.S. energy regulators to intervene in its fight with Venture Global LNG over liquefied natural gas cargoes, escalating a feud that’s roiled the market for the super-chilled fuel.

The national average diesel price dropped below $4 a gallon for the first time in nearly five months after shedding 10.5 cents to $3.987, according to the Energy Information Administration.

The Federal Trade Commission is investigating Chevron’s acquisition of Hess oil company, the second inquiry the independent agency has opened recently of a major oil industry merger.

Legislation designed to boost safety and efficiency along pipeline systems to improve supply chain connectivity was approved Dec. 6 by a committee in the U.S. House of Representatives.

Stellantis NV, owner of the Jeep and Ram brands, is petitioning against emissions standards adopted by California and 13 other states that it says give competitors unfair advantages.