Hi everyone,

I have a few questions regarding Section 9.4.1 Lighting Controls,

1. On page 141 of the LEED Reference Guide for Green Interior Design and Construction (2009 Edition, Updated May 2011), it reads "Buildings larger than 5,000 square feet must have an automatic control device to shut off all lighting in the building". If the office we are certifying is located in a building that does not have an automatic shut-off device, can we claim this section of Standard 90.1-2007 is out of scope? Or do we have to install a shut-off device in the office space we are certifying?

2. I am having troubles determining what spaces in the office need an occupant sensor, as specified by Section 9.4.1.2b. Specifically, about point "6. office spaces up to 250 ft2". What is exactly meant by "office spaces"? Does it refer to any enclosed space in an office with an area of 250 ft2 or less? For example, would a private office of a worker, that has an area of 200 ft2 require an occupant sensor? Because I think this would contradict what is written on page 141 of the LEED Reference Guide for Green Interior Design and Construction (2009 Edition, Updated May 2011) that reads "Shared spaces [...] must be equipped with a control that turns lights off...", since the private office is not a shared space.

3. Lastly, would an open plan office require occupant sensors? It is not mentioned in Section 9.4.1.2b, but I have my doubts.

Thanks for your help!