I have been asked to provide IAQ Testing for LDP, and am having trouble finding the distinctions between the normal pre-occupancy sampling for credit 3.2 and the during occupancy sampling of LDP. The information I have seems to indicate that the testing consists solely of TVOC and CO2, and testing is performed during normal occupancy hours, with HVAC set at normal. Is this right? Are there other distinctions? Is it still one test per fresh air HV/AC Unit per 25,000 SF? Any help would be much appreciated.