The NTSB is proposing changes to regulations that concern reporting and notification with regard to aircraft incidents, accidents, or collisions, because they currently do not adequately cover unmanned aircraft. The notice of proposed rulemaking seeks comment prior to July and suggests that the definition of "aircraft accident" be made to include "unmanned aircraft accident." Specifically, revisions would be made to 49 CFR part 830 to cover unmanned aircraft for the period starting from the time the vehicle is activated and concluding when the vehicle is deactivated. A UAV accident would be indicated by any person suffering death or serious injury, or substantial damage done to the aircraft while it is in operation. These additions, says the NTSB, "will enhance aviation safety by providing the NTSB with notification" of the aforementioned events.