<Li> NIST weightings are used to judge the relative importance of these impacts in each category . </Li> <Li> Data regarding actual impacts on environmental and human health are used to assign points to individual categories and measures . </Li> <P> This system results in a weighted average for each rating scheme based upon actual impacts and the relative importance of those impacts to human health and environmental quality . </P> <P> The LEED council also appears to have assigned credit and measure weighting based upon the market implications of point allocation . </P>

The components of the leed checklist that are required for certification are called what