The purpose of this Guidebook is to provide guidance to government decision makers and their advisers on best practices in designing or modifying legal frameworks and specific legal instruments aimed at effectively supporting green, low-emission and climate-resilient development. In doing so, it provides guidance on how to: assess the legal frameworks and instruments required for successful implementation of Green LECRDS; select appropriate legal instruments for implementing Green LECRDS; and implement the legal instruments that have been selected.