FedEx Corp. has received its first 150 electric delivery vehicles from BrightDrop, the startup from General Motors.

This marks a milestone for FedEx, as the company plans to transform its entire parcel pickup and delivery fleet to all-electric, zero-tailpipe emissions by 2040. The first 150 BrightDrop Zevo 600s were delivered throughout Southern California to FedEx Express, a subsidiary of FedEx Corp.

Powered by GM’s Ultium Platform, the Zevo 600 is designed for last-mile deliveries, with an estimated range of up to 250 miles on a full charge, the company says. This is part of a larger agreement between FedEx and BrightDrop that will see FedEx incorporate 2,500 total Zevo 600s across FedEx operations over the next few years.

To support the new vehicle technology, FedEx is building charging infrastructure across its network of facilities, including 500 charging stations the company has already installed across California. FedEx says it is also actively working with utility companies to help evaluate and determine the capacity needed for electrical grids to support such charging infrastructure and is investing to expand on-site generation and procurement of renewable energy in its facilities.