Hereby, the survey focuses on those measures, which have been notified by WTO Members under the so called Green Box (Annex 2 of the AoA) as this is the AoA instrument which allows for unlimited spending on domestic support measures that are not more than minimally trade- distorting. Hereby, the notification practice of WTO Members is serving as a starting point. Nevertheless, due to rather weak transparency and notification requirements, it is difficult to determine whether all notified Green Box measures are really green or not. The major stumbling block here is that there is no definition so far on what is “at most minimally trade.