Heavy-duty truck manufacturers and dealers are caught in a swirl of shifting and conflicting rules over zero-emissions big ...

And despite some recent regulation and improved emissions standards for trucks going in and out of L.A.’s ports, 90% are still powered by diesel fuel, according to the Port of Los Angeles.

California’s Advanced Clean Fleet rule, which phases out diesel trucks, was one of the most far-reaching and ... have already ...

According to the map, the 10 ZIP codes with highest exposure are concentrated near the ports and along the 110, 710, and 605 ...

In his inaugural address, President Trump took aim at California's mandate banning gas-powered vehicles. But even before he ...

Cummins’ 6.7L Turbo Diesel advanced engine system and powertrain will be offered in the recently announced 2025 Ram 2500; 3500 heavy-duty pickups; and Ram 3500, 4500, and ...

With nearly 20,000 miles on our 2024 Chevy Silverado ZR2 pickup, we have discovered it has quite a thirst for diesel exhaust ...

The state withdrew its pioneering clean air regulations for diesel trucks and trains, acknowledging they wouldn’t win federal approval. The state intended to end sales of trucks powered by fossil ...