This standard aims to implement the requirements of the 19th National Congress of the Communist Party of China and establish a reference system for measuring the sustainability of meetings. Guide and evaluate meeting methods, meeting locations, accommodation, catering, local transportation, energy consumption, paperless, biodiversity, etc., advocate a simple, moderate, green and low-carbon lifestyle, and oppose extravagance, waste, and unreasonable consumption. , reduce the environmental impact caused by meetings. This standard stipulates the definition, basic principles and content of green meetings. This standard guides the holding methods, location, transportation, accommodation, catering, waste collection and disposal, venue layout, energy conservation and emission reduction of green meetings. This standard applies to international and domestic online and offline conferences.