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In dueling court filings, Environmental Protection Agency lawyers said they want to postpone the start of a federal appeals court case on the trailer section of the Phase 2 greenhouse gas rule while trailer makers are eager to see the new rule scrapped.

The internal combustion engine’s days may be numbered in California, where officials are mulling whether a ban on sales of polluting autos is needed to achieve long-term targets for cleaner air.

ATLANTA — Presentations by Daimler Trucks North America looked to the future, including the notion of CascadiaE, an all-electric Class 8 the parent company of Freightliner Trucks might one day produce.

Technology, tax reform and new initiatives to resolve the trucking industry’s persistent labor shortage will be front and center at American Trucking Associations’ Management Conference & Exhibition.

The technology that gives cars superpowers to see around corners and through walls won’t be on the first self-driving rides hitting the road in the next few years.

Top automakers and tech companies are warning state officials the current regulations for testing self-driving cars may be too burdensome and could make it too hard or even impossible to test in Massachusetts, a move experts say would delay the economic and safety benefits expected from autonomous vehicles.

Embracing technology is the next natural step in the evolution of third-party logistic companies, according to Robert Voltmann, president of the Transportation Intermediaries Association.