**Updated 7/1/2015 to clarify compliance paths.
Existing Building projects, including spaces that operate 24/7, can demonstrate compliance by following Option 2 in New Construction:
Option 2
All openings in the envelope (translucent or transparent) with a direct line of sight to any non-emergency luminaires must have shielding (controlled/closed by automatic device for a resultant transmittance of less than 10% between 11 p.m. and 5 a.m.).
This interpretation is not applicable to v4 projects because there are no interior lighting requirements in v4.