Mechanical floors

Are they occupied on a regular basis? If someone is in theses spaces on a regular basis working or maintaining equipment these spaces need to be included in your flush out or testing.

There are a number of CIRs (6/24/09 in particular) that deal with this specific issue. Based on them any space defined as "occupiable" by ASHRAE 62.1 needs to be included in the EQc3.2 compliance. Storage spaces and mechanical rooms are excluded, but IT/Data Center rooms may be included because personnel can occupy them more than "occassionaly and for short periods of time". It's going to depend on what the IT room is used for. However, the 6/24/09 CIR is in contradiction to an earlier one (9/18/07) which states that all spaces within the building envelope must comply. I'm assuming these spaces are small in size, so would they cause a problem for compliance?