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EEWH is the green building certification system in Taiwan. EEWH comprises nine indicators that fall into four categories - ecology, energy saving, waste reduction and health - hence the name EEWH. The system was launched in 1999.

Since 2003, the indicators have been foliage; water soil content (infiltration and retention); energy savings (for the building envelope, lighting and HVAC); emissions reduction; construction waste reduction; water conservation; garbage and sewage improvements; biodiversity; and indoor environmental quality.

EEWH has five levels: certified, bronze, silver, gold, and diamond. As of May 2008, one building ( Beitou Public Library) had been rated diamond level, and one gold.

EEWH is not equivalent to LEED ( Leadership in Energy and Environmental Design Green Building Rating System) in the United States, CASBEE (Comprehensive Assessment System for Building Environmental Efficiency) in Japan, and HQE in France.