This publication emphasizes the role of energy efficient lighting and its potential for rapidly reducing carbon emissions and delivering economic and environmental benefits through Nationally Appropriate Mitigation Actions (NAMAs). It has been designed to assist governments, international agencies and other stakeholders shape national efficient lighting strategies into NAMAs. The Guidebook encompasses the entire process from developing a basic checklist to forming a national efficient lighting strategy. It also addresses other critical elements required to establish a successful efficient lighting NAMA by providing the most up-to-date information and case studies related specifically to energy efficient lighting.