Searches. these methods identified a range of academics and practitioners who were subsequently contacted and inter- viewed on their use of gappa to date. results preliminary findings suggest that gappa’s implementation currently varies greatly internationally. some nations, includ- ing finland and scotland have embraced a wsa, taking steps to actively map their pa system. elsewhere, countries such as ireland and australia are exploring practical approaches to implementing a wsa. gappa was only published in june 2018 and thus, where action is taking place, these countries offer important implementation evidence and opportunities for transferable learning. regarding gappa’s objectives, our review concludes that in nations that have embraced gappa, the active societies and active environments objectives are being actioned or have plans in development for progress towards behaviour and system change (active people and active systems) appear less evident. conclusions there is some promising evidence drawn from gappa’s early implementation, although we conclude that if who targets are to be reached, wider adoption is needed. it appears that the nations who have best applied gappa, are those who arguably have pre-existing cross-sectoral networks in pa and public health. therefore, perhaps a crucial first step in nationally implementing gappa is the establishment of these networks, laying foundations for collaborative action. furthermore, the generation and dissemination of research by some of the early and