This site offers information about the International Astronomy Olympiad (IAO), one of the six First International Science Olympiads (like International Olympiads on Mathematics, Physics, Chemistry, Informatics and Biology). It contains the Organization Rules of the IAO which are officially accepted by all participating states and ratified by the leading body of the IAO - the Euro-Asian Astronomical Society. The Rules have to be strictly followed by all participants.
It also includes a brief history of the IAO and necessary information for new participating countries and future host countries.