Sustainable Products Purchasing Coalition Sustainable Products & Components Purchasing Based on environmental product life cycle assessment (LCA) Calculated by Environmental Product Life Cycle Assessment (LCA) covering all LCA stages: raw materials extraction, manufacturing, transportation, product use, and end use This chart shows a LEVEL 4 Investor Rating with a Cumulative LCA Impact Score of 400 in the far left column. The LCA tool used was developed by NIST pursuant to consensus ASTM and ISO standards and is supported by EPA & HUD.

INDIVIDUAL IMPACTS Sustainable Products Catagories CUMULATIVE IMPACT SCORE   Climate Change Acid Rain Water Pollution Resource Depletion IAQ Solid Waste Smog Ozone Depletion Eco Tox Human Tox     900                         800                         700                         600                       LEVEL 6 500                       LEVEL 5 400                       LEVEL 4 300                       LEVEL 3 200                       LEVEL 2 100                       LEVEL 1 0