Jerry, I see the "list" as what can and can not be done---I just don't see any if-then to the list. What you are saying may be what was "intended" by the change from 2003---but it is not what it says. I expect we will be seeing more clarification on this one. Like I said previously, I am not seeing any terminations on the interior of the home unless there is no other way to do it---of course not very many jurisdictions have adopted the 2006IRC in my area----none that I know of.