Article 148 A general aviation enterprise engaged in general aviation operations for commercial purposes shall enter into agreement in writing with users with the exception of rescue or disaster relief operations under emergent circumstances.
Article 149 In organizing and carrying out aerial work, effective measures shall be taken to ensure flight safety, protect environment and ecological balance and prevent damage to be caused to environment, residents, crops or livestock.
Article 150 Those engaged in general aviation operations shall be covered by insurance against liability for third parties on the surface.
Chapter XI
Search and Rescue and Accident Investigation
Article 151 A civil aircraft in emergency shall flash signals and report to air traffic control unit to request rescue; the air traffic control unit shall notify immediately the search and rescue coordination centre. A civil aircraft in emergency on the sea shall also flash signals to vessels and national maritime search and rescue service.
