Hong Kong (Area Control Centre) is one of two key area control centres in the Pearl River Delta and is under the Hong Kong Civil Aviation Department. HK ACC is based out of the control tower at Hong Kong International Airport. From this ACC, air traffic controllers provide en route and terminal control services to aircraft in the Hong Kong Flight Information Region (FIR). The Hong Kong FIR airspace covers the waters off Hong Kong to the south, southeast and southwest. This does not include the airspace and immediate waters off the mainland China and Macau (under Guangzhou FIR). HK ACC does handle flight in and out of Macau International Airport. Aerodrome classes The HKG ACC assumes control of the following classes of airports VHHH – Chek Lap Kok VHSK – Sek Kong Airfield VHSS – Shun Tak Heliport HK07 – Central Government Heliport VMMC - Macau International Airport XZM - Macau Heliport RCLM - Dongsha Airport References External links HK CAA Air traffic control centers Aviation in Hong Kong Air traffic control in Asia