Which of the following is not a standard referenced for Minimum Indoor Air Quality Performance?

The rationale for identifying the LEED Green Building Rating System as the correct answer lies in understanding its function and purpose in relation to indoor air quality standards. The LEED system itself serves as a framework for assessing the environmental performance of buildings, including aspects like indoor air quality. However, it does not function as a specific technical standard.

On the other hand, ASHRAE Standard 170, ASHRAE 62.1, and CEN Standard 15251 are indeed recognized standards that focus directly on indoor air quality performance. ASHRAE 62.1 outlines ventilation for acceptable indoor air quality in commercial buildings, while ASHRAE Standard 170 specifically addresses ventilation in health care facilities. CEN Standard 15251 provides criteria for indoor conditions and their impact on health and comfort in buildings.

In summary, while the LEED Green Building Rating System incorporates guidelines related to indoor air quality, it does not serve as a technical standard on its own like the other referenced options do.