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NASHVILLE, Tenn. — Tennessee Gov. Bill Lee is considering allowing express toll lanes on highways and tripling a fee for electric car owners as he targets his first big push after winning re-election — paying for tens of billions of dollars in roadway projects.

Two new hydrogen hubs have been formed with a Southwest collaborative among Arizona, Nevada and the Navajo Nation as well as a six-state Southeast group featuring lead utilities.

A short guide to help state agencies collaborate in creating electric vehicle infrastructure has been published by a group of key national transportation, electric utility and energy groups.

Michigan’s gas tax is going up 1.4 cents per gallon starting Jan. 1, thanks to an automatic adjustment written into state law.

The national average price of diesel dropped 9.2 cents to $5.141 a gallon, according to Energy Information Administration data released Nov. 28.

The national average price for diesel slid 8 cents to $5.233 a gallon, according to Energy Information Administration data released Nov. 21.

Federal regulators have proposed a new climate-reporting rule that would require large federal contractors to publicly disclose their greenhouse gas emissions, climate-related financial risks and science-based emissions reduction targets.

Under an initiative announced at a United Nations climate gathering in November, preliminary plans are in the works for a “Great Lakes-St. Lawrence Seaway System Green Shipping Corridor Network.”

Unprecedented diesel prices mean that demand destruction for the fuel is probable, the International Energy Agency said.

California is deploying a portable emissions detector in areas with heavy truck traffic to educate drivers and operators about a new smog check program that starts Jan. 1.