1. Civil Aviation Bureau, Ministry of Land, Infrastructure, Transport and Tourism (2016) Roadmap for the application and technology development of UAVs in Japan. In: The Public-Private Sector Conference on improving the environment for UAVs, Apr 28. Available from: https://www.meti.go.jp/english/policy/mono_info_service/robot_industry/downloadfiles/uasroadmap.pdf
2. Civil Aviation Bureau, Ministry of Land, Infrastructure, Transport and Tourism (2019) Unmanned aerial vehicles (drones, radio-controlled aircraft, etc.): Guidelines for safe flight (in Japanese). [Internet] [updated 2019 Aug 23
3. cited 2021 Aug 03]. Available from: https://www.mlit.go.jp/common/001303818.pdf
4. Civil Aviation Bureau, Ministry of Land, Infrastructure, Transport and Tourism (2020) About the direction of the new system for the realization of level 4 of unmanned aerial vehicles (in Japanese). [Internet] [updated 2020 Dec 03
5. cited 2021 Aug 03]. Available from: https://www.kantei.go.jp/jp/singi/kogatamujinki/kanminkyougi_dai15/siryou1.pdf