FAA grants Amazon experimental certificate to test out drone delivery service in the US

The US Federal Aviation Administration (FAA) has finally approved Amazon's request to begin testing out its Prime Air drone delivery service, eight months after Amazon asked the regulator for approval. According to the experimental airworthiness certificate issued to Amazon, the unmanned aerial vehicles (UAV) must be flown at a maximum height of 400 feet and must remain within the line of sight of the pilot. The terms of the certificate also require Amazon to provide monthly data to the FA