The Green Airports Recognition programme was established in 2017 with the support from the ACI Asia-Pacific Regional Environment Committee. ACI's Green Airports Recognition programme promotes environmental best practices to minimize aviation industry's impact on the environment and recognizes ACI Asia-Pacific members for outstanding environmental initiatives and projects. Each year, a different theme is chosen from the environmental aspects and the theme for 2021 was Air Quality Management, specifically emphasizing the benefit of local air quality management. Since 2018, DIAL and GHIAL have been continuously winning ACI Green Airports Recognition awards for various sustainable initiatives.
The award was decided by a distinguished global panel that appreciated DIAL's Green taxiing initiatives at IGI Airport based on TaxiBots. This is the fifth consecutive year where DIAL was awarded for its sustainable initiatives. The use of TaxiBot's have helped in reducing around 532 tonnes of carbon at Delhi Airport. It also helped airlines in saving around 214,000 litres of aviation turbine fuel (ATF), which was supposed to be burned by the aircraft during taxiing.