50. Considering that most international migration takes place within regions, we invite relevant subregional, regional and cross-regional processes, platforms and organizations, including the United Nations regional economic commissions or regional consultative processes, to review the implementation of the Global Compact within the respective regions, beginning in 2020, alternating with discussions at the global level at a four-year interval, in order to effectively inform each edition of the International Migration Review Forum, with the participation of all relevant stakeholders.