All existing fixtures within the LEED project boundary would need to comply with the SSc8 requirements at the time the project is submitted for review. However, if the project elected to use the campus property boundary as the "lighting boundary" for SSc8 as allowed by LEED Interpretation #10236, existing fixtures within the lighting boundary, but outside the specific LEED project boundary would not have to comply with any of the SSc8 requirements.

According to LEED Interpretation #10236, street lighting that is required by the governmental authorities to be installed within the LEED project’s lighting boundary (whether existing or new) does not need to be included in any of the calculations.

Not currently, but USGBC is looking at exempting flag lighting from LEED v4 requirements.

If the canopy blocks 100% of the light then yes, but this is unlikely. Any light spillage needs to counted toward the uplighting limit, but calculating this can be difficult.

No, per ASHRAE table 9.4.5, you can exclude lights in display windows, advertising, and directional signs as long as they are switched separately from other lighting.

At grade level.

Use only the area that has measurable light on the surface, baseline and proposed are the same.

You can use the curb line.

Significant reductions for tradable surfaces in LZ1 and LZ2 and some in LZ3. See the new table for details. It also added lighting power allowances according to light zones, removed a 5% adder, and introduced a base site allowance. Suggest revising response and adding a link to the Addendum i available for free download on ASHRAE website.

Yes.