LSS aircraft are flying objects with flight levels below 1000m, airspeed less than 200km, and radar reflection area smaller than 2sqm. LSS aircraft have 12 main categories such as light and ultra-light aircraft (including light and ultra-light helicopters), gliders, hang gliders, powered hang gliders, manned balloons (hot air balloon), airship, paragliders, powered paragliders, drones, model aircraft, unmanned free balloons, and captive balloons, etc.

In order to maintain air safety in Beijing during the celebration of the 100th anniversary of the founding of the Communist Party of China, all small aircraft flights are prohibited. According to the requirements of the higher authorities, from 00:00 on June 21, 2021, to 24:00 on July 1, 2021, all units, organizations, and individuals are prohibited from using UAVs, crossing planes, and other "low slow small" aircraft to carry out sports, entertainment, advertising flight activities, and balloon activities in the administrative area of the city from the ground to infinite height.

Besides, according to the notice of Banning Production, Sales, and Flying of Kongming Lanterns in Beijing Region issued in 2014, the production, sales, and flying of Kongming Lanterns are banned in the administrative area of Beijing as well. Work units and individuals who produce, sell, and fly Kongming Lanterns unlawfully will be brought to justice by relevant departments. If the situation is so severe that an offense is committed, the law-breakers will be prosecuted for criminal responsibility according to the law.