https://www.theverge.com/2019/1/15/18183830/faa-drone-regulations-usa-crowds-night

The Federal Aviation Administration is considering loosening its restrictions and allowing drones to be flown over crowds. The proposals, which were first unveiled on Monday, introduce three categories for drones, with varying restrictions on how they could be flown over people. In addition, flying drones at night, which is currently only allowed with explicit permission from the FAA, would be allowed if the drone is equipped with anti-collision lighting and if the pilot completes special training.

The proposals categorize drones into one of three groups, depending on their weight and the amount of damage they could do to a person. The first category of drones are defined as weighing less than 0.55 pounds. Drones in this category would be allowed to fly over people with no restrictions beyond the FAA’s existing rules — such as maintaining a line of sight or not flying over 400 feet in the air.