The Green Globe certification is a structured assessment of the sustainability performance of travel and tourism businesses and their supply chain partners. Businesses can monitor improvements and document achievements leading to certification of their enterprises’ sustainable operation and management. The Green Globe Standard includes 44 core criteria supported by over 380 compliance indicators. The applicable indicators vary by type of certification, geographical area as well as local factors. The entire Green Globe Standard is reviewed and updated twice per calendar year. Green Globe is active in harmonizing with other established sustainability certification programs around the world. The process of harmonization contributes to maintaining core criteria and at the same time addresses regional issues through the adoption of locally developed standards.