Uber can continue to offer rides in its fleet of self-driving cars in Pittsburgh without an additional permit as long as the service remains free, the Pennsylvania Utilities Commission said Thursday.

The ride-sharing giant started offering rides in self-driving Ford Fusions on Wednesday. The rides are free “for now,” according to the email to users selected to participate in the pilot, during which Uber employees sit behind the wheel.

The company has not said when or if it would start charging for self-driving rides.
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