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Illustration of Department of Justice building superimposed by truck exhaust stacks
NewsJanuary 27, 2026

Justice Department Pulls Back on Criminal Prosecution of Diesel Emissions Deletes

The Trump administration has announced it will no longer criminally prosecute “diesel delete” cases of truck owners altering emissions systems in violation of EPA regulations. What does that mean for heavy-duty fleets?

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Volvo FH truck.
Newsby Jack RobertsSeptember 2, 2025

Volvo Trucks Introduces Stop/Start Diesel Engine Technology

Volvo Trucks has introduced new stop\start technology for its diesel engines in Europe.

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Graphic illustrating concept of California emissions regulations
Newsby Deborah LockridgeAugust 18, 2025

California Under Fire Over Clean Truck Partnership

Truck makers say they're caught in the crossfire as the Trump administration challenges the California Air Resources board over California's contention that the Clean Truck Partnership agreement is still valid.

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2027 truck prebuy.
Newsby Jack RobertsJune 30, 2025

Is a 2027 Truck Prebuy Still in the Cards?

Despite the current market uncertainty, Brian Antonellis, senior vice president of fleet operations for Fleet Advantage, thinks some fleets will prebuy Class 8 trucks ahead of the 2027 model year.

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Newsby Deborah LockridgeMay 15, 2025

California to Officially Repeal Advanced Clean Fleets Rules

California has agreed to formally repeal much of its controversial Advanced Clean Fleets electric-truck mandate as part of a legal settlement, while more states are pulling back on adopting the state's Advanced Clean Trucks rules.

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Lars Stenqvist, Volvo Group, Chief Technology Officer at ACT Expo 2025.
Truck Techby Jack RobertsMay 5, 2025

What I Learned at the ACT Expo 2025 Truck Show

The past year has been a rough one for climate activists. What would it mean for the trucking industry’s premier clean-fleet technology trade show?

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Newsby Jack RobertsMay 1, 2025

Republicans Try to Kill Off CARB Regulations

It's up to the Senate now to act on the House vote to revoke EPA waivers for California heavy-duty-truck emissions rules.

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Newsby Jack RobertsApril 29, 2025

Volvo Seeks CARB-24 Engine Certification for New VNL and VNR

Upon successful certification, deliveries of new Volvo VNL and VNR trucks with CARB-24 Omnibus compliant engines are expected to begin in the fourth quarter.

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PodcastsMarch 24, 2025

Why Hexagon Agility Loves RNG as a Truck Fuel

Renewable natural gas is, well, a natural when it comes to replacing diesel as a clean fuel for truck fleets. Hexagon Ability's senior vice president, global sales and marketing Americas, tells HDT Talks Trucking why.

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Newsby Deborah LockridgeFebruary 18, 2025

EPA Action Would Allow Congress to Kill California's Clean Truck Rules

The Trump administration is seeking to revoke California’s EPA waivers approved under the Biden administration, with the aim of killing the state's Advanced Clean Trucks and Omnibus NOx rules.

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