Our project, is a seven story office building, located in the Southwest sector of Washington, D.C., clustered among other similar sized government buildings. The building is surrounded by sidewalk on all four sides, with the following conditions: North Side: The property line of the building extends beyond the adjacent sidewalk to a parking lot. East, West South Side: The property line of the building ends before the sidewalk. The sidewalk is city property and is adjacent to city streets. The existing light poles meet the requirements for full cut-off classification. However, the city and NCPS have a central design plan for reasons of security and consistent aesthetics. The fixture that has been designated under this plan, (the Washington Globe) can be attained in a version that meets the requirements for a cut-off fixture, but is not available as full cut-off. Only the fixtures on the North side of the building actually fall within site boundaries. While the required use of the Washington Globe fixture does not meet the requirement for full cut-off, we have demonstrated through calculations modeled in AGI software, that by significantly lowering fixture wattage, in one-to- one fixture replacement, appropriate light levels can still be achieved on the sidewalk (1.45fc, 2.9:1 contrast), and upward light components can be significantly reduced so as to be equivalent to that of the existing full cut-off fixture at approximately 48\' above grade (lower than surrounding building heights). (We are proposing replacing the existing fixtures (175 Watt metal halide, full cut-off) with 100 Watt metal halide, cut-off DC Standard Washington Globe fixtures. Typical DC Standard fixtures utilize 175 W - 250 W lamps.) The upward light component from the existing fixtures, generated by light reflecting from the sidewalk is evident up to approximately 37\' above grade. In our proposed 1:1 fixture replacement scheme upward light contribution from the top of the fixture, to 37\' above grade, is almost identical for the existing full cut-off fixture configuration and the Washington Globe fixture in the same configuration. A nominal amount of upward light contribution (0.1fc) is evident from the Washington Globe cut-off fixture between 37\' and 48\' above grade. No upward light contribution is evident above 48\' above grade for either fixture. If all other requirements of the Sustainable Sites Credit 8 are met, and it can be demonstrated that the proposed design performs virtually as well as the existing configuration, with regard to light pollution and average light levels, with reduced energy usage, can the credit be attained?