Autonomous vehicle company Waymo and Fiat Chrysler Automobiles NV are set to expand their autonomous vehicle partnership to commercial vehicles, working on level 4 self-driving.

The move will see Fiat Chrysler develop fully self-driving vehicles exclusively with Waymo in the future.

Waymo, which is a unit of Google parent Alphabet Inc and Fiat Chrysler said they will work together to develop autonomous light commercial vehicles for moving goods, starting by integrating Waymo’s self-driving technology into Ram ProMaster vans, which Fiat Chrysler sells across the world.

Fiat Chrysler is ending work on autonomous commercial vehicles it began last year with technology company Aurora. Aurora will continue to use Chrysler minivans in its test fleets.

Waymo has been working with Fiat Chrysler since 2016 to integrate its self-driving vehicle system, the Waymo Driver, into vehicles such as the Chrysler Pacifica minivan.

Fiat Chrysler also has a partnership with BMW AG and Intel Corp to develop automated driving technology.