John and Celtic,
I was told by more than 1 EC that even though the HVAC is a brand new system it is being installed in an "old" house (Even if the house is a year old). Therefore it falls under "Rehab". (This is their words not mine.) I have a call into DCA, but we keep playing telco tag. I believe that a new HVAC should follow the newest NEC and not fall under "rehab". However I might have to follow the DCA rules. I am waiting to see what their response is. When I get it, I will post here again.
