The Green Climate Fund (GCF) adopted an ad hoc resource mobilization process at its inception. This document presents the background to and initial provisions for implementing a replenishment model, as well as an overview of the necessary arrangements for the first formal replenishment of the GCF. It sets out a proposal on the required steps for the replenishment process that follows international best practice, including: preparatory meetings, financial targets, performance reviews, programming and strategic direction establishment, among others. Finally, a pledging session will be held where contributors will announce their pledges to the first replenishment of the GCF.