Green Key
Unlocking sustainability in the hospitality industry
Last update: August 2026
More than 9,000 hotels and other establishments in 90+ countries
are Green Key certified as of August 2026
Green Key is an international sustainability certification programme for tourism establishments. The certificate is issued to establishments that have been assessed against Green Key’s published criteria, developed by the Foundation for Environmental Education (FEE) in consultation with external relevant stakeholders. The criteria cover various areas including environmental practices, social responsibility, sustainability education and operational management.
The assessment process includes a review of documented evidence and an on-site audit based on a representative sample of evidence to determine whether the establishment meets the applicable criteria at the time of assessment. Regular assessments and periodic renewal requirements encourage continuous improvement in the areas covered by the programme.
Green Key is available to hotels, hostels, small accommodations, campsites, holiday parks, conference centres, restaurants, and attractions.
Operated by the Foundation for Environmental Education (FEE)
Green Key Criteria 2026-2031
2026–2031 Criteria and Certification Process
Green Key is transitioning to its new 2026–2031 criteria and certification process, with updates to the application timeline, tools, and requirements around environmental claims. Read he full article to find out what’s changed here.
WHERE ARE THE GREEN KEY ESTABLISHMENTS?
Explore Green Key certified establishments around the world!
Use our interactive map to discover participating hotels and other tourism establishments across the international Green Key network.
