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In LEED Category Site Selection:
Light Pollution Reduction we are to only
light areas as required for safety and
comfort. Do not exceed 80% of the lighting
power densities for exterior areas and
50% for building facades and landscape
features as defined in ASHRAE/IESNA Standard
90.1-2004, Exterior Lighting Section, without
amendments.
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Answer:
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All projects shall be classified under
one of the following zones, as defined
in IESNA RP-33, and shall follow all of
the requirements for that specific zone:
LZ1 — Dark (Park and Rural Settings)
LZ2 — Low (Residential areas)
LZ3 — Medium (Commercial/Industrial,
High-Density Residential)
LZ4 — High (Major City Centers, Entertainment
Districts)
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