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Thanks to a statutory formula based on wholesale fuel prices in the state each July, diesel taxes have taken a tumble in Connecticut.

The Obama administration unveiled its long-anticipated Phase 2 rule on greenhouse-gas emissions from heavy- and medium-duty trucks, pushing the industry to make tractors and trailers that are more aerodynamic and fuel-efficient, yet still safe and durable.

Updating the adage that the pen is mightier than the sword, we note that a PDF available online will come to shape truck and trailer manufacturing through the late 2020s, namely, the final version of Phase 2 of the federal greenhouse-gas rule.

The Federal Aviation Administration — and airports by extension — have missed out on as much as $2 billion in funding over the past decade because of a 2005 provision designed to prevent fraudulent use of noncommercial jet fuel by truckers.

When it comes to differences in average height, weight and strength of male and female Class 8 truck drivers, those differences challenge truck designers to build a vehicle that can be easily used by both genders. Those physical differences can make it difficult for drivers — male or female — to reach the pedals while seeing over the hood, or to open a hood and be able to add engine oil or clean a windshield without having to climb atop a tire.