Federal regulators are clearing the way for robotaxis to operate without steering wheels or eventually even brake pedals as the rules start to catch up to the evolving technology. Amazon’s fully autonomous Zoox vehicles got approval Thursday to begin charging customers for rides in the specially designed boxy cars that feature four inward-facing seats once they secure state and local approval. The National Highway Traffic Safety Administration also proposed a rule last month to allow robotaxis to operate without brake pedals, but that proposal is still pending. Administrator Jonathan Morrison said his agency wants to clear the way for the safe development of autonomous vehicles. Zoox CEO Aicha Evans said this approval is an important milestone for autonomous vehicles.