This site offers information about the Asian-Pacific Astronomy Olympiad (APAO) - a regional (for countries of Asia and Oceania) International Science Olympiad, the daughter of the International Astronomy Olympiad (IAO). ... As a daughter Olympiad, APAO follows Organization Rules of the IAO , which are officially accepted by all participating states and ratified by the leading body of the IAO and APAO - the Euro-Asian Astronomical Society. ...