General Motors has, finally, began shipping its Duramax diesel-powered full-size pickup trucks to dealerships across the United States.

Auto News reports that diesel Chevrolet Silverado and GMC Sierra will arrive as 2020 models, as opposed to 2019MY ones as originally planned. This is due to a three-month delay related to the government’s emissions certification process for the vehicles.

GM spokesman Monte Doran revealed that shipments started the week of August 12 and that it could take three to six weeks to fill the backlog of orders. “They are out. They are moving, and we’re getting them to dealers as quickly as we can,” Doran said.

Also Read: Is Chevrolet Going To Offer A Luxurious Silverado With A $100k Price Tag?

While speaking at a GMC media event in Wyoming last week, executive chief engineer of GM’s full-size trucks, Trim Herrick, said the U.S. Environmental Protection Agency required more details than expected to certify the vehicles. Herrick revealed that the EPA had the vehicles for more than a year before approving them for sale.

“The emissions certification took longer than we had expected, so rather than launching them for one month as ’19s, we decided to launch them as 2020,” Doran explained. “That just made some logistic sense.”

The gasoline-powered versions of the Silverado and Sierra have been available since August 2018.

Those looking to pick up a new diesel-powered Silverado can do so from $42,385 including shipping, while diesel Sierra models are a touch more expensive at $43,285. Both vehicles are built at GM’s facility in Flint, Michigan.

GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay
GM Starts Deliveries Of Duramax Silverado And Sierra After EPA Certification Delay