A Qualification Test Guide (QTG) is a guide for certifying new flight simulation technology to one of the regulatory levels of the appropriate national or regional regulatory body. A QTG provides a list of tests that are necessary to qualify a flight simulator for use. Regulatory bodies that utilize QTGs include the Federal Aviation Administration (FAA) in the USA, the European Aviation Safety Agency (EASA) and equivalent bodies in other countries.
Some international QTGs are published by the International Civil Aviation Organization (ICAO) and some have been drafted as a result of international working groups chaired by the London-based Flight Simulation Group of the Royal Aeronautical Society, the latter acting as an international "honest broker."