Flight Procedure and Airspace Program office
Air Traffic Control Division
Air Navigation Services Department
Civil Aviation Bureau
Ministry of Land , Infrastructure , Transport and Tourism (MLIT)
2-1-3 Kasumigaseki , Chiyoda-ku , Tokyo ,100-8918 JAPAN

E-mail : hqt-JASMA@gxb.mlit.go.jp
Tel : +81-3-5253-8750 Fax : +81-3-5253-1664

Office Hours : 9:00 – 17:00 Monday – Friday (except public holidays)