Can the Owner or GC do the IAQ test themselves ie be responsible for setting the test can and chain of custody to the lab?

I am working on a small ~6,500 sq. ft. LEED-CI office space.

I have a 191,000 sf nc school that will require 11 sample points.

Hi, we would like to know if flush out is practicable in areas where high humidity is experienced whole year, say 70-85%. Should we cancel out option 1 already and go for option 2 (IAQ testing)?

With Option 1, Path 1, we are expected to flush-out 14,000 cf/sf of outdoor air at 60 degrees temp. and 60% humidity min. Is there a minimum ventilation rate as with Path 2 which is 0.30 cf/min.?

I am aware of the verbiage in the LEED reference guide for IAQ testing to be completed PRIOR to occupancy, but considering that the flushout method can be completed DURING occupancy, I was wonderin

Our project is a government office that will be continuously occupied throughout the duration of construction.

I just had a mechanical engineer point out that the partial flush-out option does not include the requirement to maintain 60 degree temperature and 60% humidity.