A recent disappointment in Sevierville:

 Over the past 2 years I have been testing new construction for 2018 Code Compliance, specifically Duct and Blowerdoor pressure testing. This year the code officials decided to abandon 2018 and adopt state level 2012 IRC . The state does not require pressure tests, stating they are "Voluntary" so, of course, no one does. A step backwards for those of us who support sustainable healthy homes.