The 2015 IECC-based Residential and Commercial Building Energy Standards (2015 Vermont RBES and CBES) became effective March 1, 2015. The new RBES Stretch Code became effective December 1, 2015. The 2015 RBES Handbook is now available. [MORE]
UPDATE: The new CBES stretch code was adopted in May 2016 and became effective June 1, 2016.