Green building refers to the building with a life cycle (processes from building materials production to building planning, design, construction, use, management, and demolition) which consumes the least earth resources, uses the least energy, and produces the least waste. Green buildings are ecological, energy-saving, waste-reducing, and healthy buildings. The nine major indicators include ecological diversity indicators, greening capacity indicators, base water retention indicators, daily energy-saving indicators, carbon dioxide reduction indicators, waste reduction indicators, indoor environment indicators, water resources indicators, and sewage and waste improvement indicators. TKU actively follows the guidelines for the new (renovated) building of the nine major green building indicators: after the first phase of the construction of the Lanyang campus was approved by the Ministry of the Interior and issued the green building mark in September 2006, the Hsu Shou-Chlien International Conference Center building completed on Tamsui Campus in 2018 was also awarded the Green Building Silver Mark in May 2019.