Amazon's autonomous vehicle subsidiary Zoox has begun mapping operations in Phoenix and Dallas as it prepares to potentially expand its robotaxi testing to these markets.

The mapping activities represent a precursor to launching robotaxi services in the two cities, according to reports. Zoox uses detailed mapping data to enable its autonomous vehicles to navigate urban environments safely and efficiently.

The expansion comes as Zoox continues to develop its purpose-built autonomous vehicle, which was designed specifically for ride-hailing services rather than being adapted from a traditional passenger car. The company has been conducting testing operations in other markets as it refines its technology.

However, Zoox still faces regulatory hurdles before it can begin commercial robotaxi operations. The company is currently awaiting federal approval to operate its autonomous vehicles commercially, which is required before paying passengers can be transported.

The Phoenix and Dallas markets would add to Zoox's testing footprint as the company works toward eventual commercial deployment. Both cities have been active markets for autonomous vehicle testing by various companies in the industry.

Amazon acquired Zoox in 2020 for a reported $1.2 billion, adding autonomous vehicle capabilities to its transportation and logistics portfolio. The robotaxi service represents Amazon's entry into the autonomous passenger transportation market.