Commonwealth Consolidated Regulations Commonwealth Consolidated RegulationsFor this Part, an area is a populous area in relation to the operation of an unmanned aircraft if the area has a sufficient density of population for some aspect of the operation, or some event that might happen during the operation (in particular, a fault in, or failure of, the aircraft) to pose an unreasonable risk to the life, safety or property of somebody who is in the area but is not connected with the operation.