Ever since Amazon put the idea of delivery drones in the limelight, companies across the United States have been asking federal regulators for permission to begin testing their own delivery drone systems. Walmart is the latest company to do so, having already done testing inside its own facilities, and now wanting the FAA to grant it an exemption from American drone regulations so that it can conduct testing outside. The company claims it wants to use drones to improve its supply chain and conduct aerial inspections of its buildings.