Waymo is launching its robotaxi in Denver, San Diego, and Tampa

Waymo is expanding again, and this time it's adding a new U.S. state – Colorado – to the list of places where it offers its driverless taxis.

On Tuesday, Waymo announced it is launching in three new U.S. cities: Denver, Colorado, San Diego, California, and Tampa, Florida.

The service will roll out to users over time.

Credit: Waymo The expansion, which will roll out to users gradually, brings the number of cities where Waymo operates to 14.

It will start with "dozens" of vehicles, gradually scaling up to "hundreds" over time.

The service will start with dozens of vehicles, but the number should grow to hundreds over time.

Credit: Waymo According to the company, this will be the first time the 6th gen Waymo Driver (that's how Waymo calls its self-driving system ) is deployed at scale.

In total, the expansion will add roughly 150 square miles of service territory to Waymo's coverage map.

The Ojai has been built to be a robotaxi from the ground up.

Credit: Waymo Prospective riders should know that in Denver and San Diego, the rides will only be offered via the Waymo Ojai , a new, van-like electric robotaxi built for Waymo by the Chinese company Zeekr.

The Ojai is designed to be a robotaxi from the ground up, and it has a spacious cabin with sliding doors and two large LED displays for riders in the back.