Responsibility for grant approval in RDA TIGER and RDA WG selection for in-kind support lies with the RDA TIGER Selection Committee. This deliverable is a guidance document that sets out the rules of participation that the Committee should follow. It describes the types of funding instruments, rules that the decision making for WGs should follow including defining the selection criteria and role of the Selection Committee. It connects strongly to the work of WP1, the RDA TIGERManagement work package in RDA TIGER who are responsible for the contractual elementsof the grants and budget coordination.