Do the requirements for credit IEQ c4.4 apply to accoustical panel ceilings? All of the ceiling panesl we are using (from Armstrong) indicate they are on the list of CHPS High Performance Products Database for Low-Emitting Materials; however, some are indicated as "NO VOC Formaldehyde" and some are "LOW VOC Formaldehyde." I am assuming these must comply and should be the "NO formaldehyde" versions. Any quidance would be greatly appreciated.