Zoox, owned by Amazon, has requested a federal exemption to commercially deploy its custom-built robotaxis, which lack traditional controls. The company has submitted a petition for a '555 exemption' and is working with the National Highway Traffic Safety Administration (NHTSA). The NHTSA is reviewing Zoox's application and will seek public comment after its initial review. This request follows the launch of a free robotaxi service in Las Vegas and an earlier NHTSA exemption for demonstrating robotaxis on public roads. This new application would broaden the scope and pave the way for Zoox to launch a commercial robotaxi service.