Our project scope includes the tenant improvement of a 39,000 SF office space. The space was previously occupied by another tenant. Much of the existing interior construction and finishes were saved, though some were demolished. During the construction of our project, all construction waste was sorted and sent for recycling. Throughout the span of the five month project, over 92 tons of refuse was produced, 84.5 tons of which, or 93% was sent to recycling. Our efforts fell just short of the 95% recycling threshold set by the LEED-NC system (per CIR dated 1/11/2005) for this credit to be considered for and exceptional performance ID credit. Though challenging, achieving a recycling threshold of 95% on LEEDNC projects is extremely plausible especially in the Bay Area which has excellent recycling programs. It is also reasonable to achieve as this LEED-NC credit would most plausibly consider the recycling of demolition if it is not a greenfield site. Demolition under the LEED-NC system would likely include heavy core and shell materials such as concrete, steel and wood and skin materials such as CMU, glass and metals. All these materials are recyclable. In terms of our tenant improvement project, the waste produced includes construction scrap, construction packaging and demolished interiors of the previous building condition. Demolition that was recycled includes drywall, metals (mostly steel studs), and glass. The project scope did not include the demolition of more weighty core and shell materials such as concrete and steel. Skin systems such as glass and aluminum also were not demolished on this project. If the project scope also included the demolition of heavy core and shell materials such as concrete and steel, our recycling threshold would have been easily pushed from 93% to above the 95% threshold set by the LEED-NC CIR. Though this project did not meet the 95% recycling performance threshold set by the LEED-NC CIR, we ask that the threshold be lowered to the neighborhood of 90% in the LEED-CI system. Given the recyclability of most interiors in addition to construction scrap, we believe it is unreasonably difficult to achieve a recycling rate of 95% in the CI system as most interior projects will not include the demolition of Core and Shell which likely will skew the recycling percentage to above 95%.