Energy Conservation 'Appendix 120 AA' Approved
A code change proposal relating to energy conservation was approved by the BBRS at the May 12, 2009 meeting and will become an appendix to the MA State Building Code (780 CMR) on or about August 1, 2009. It is based on the International Energy Conservation Code (IECC) 2009 and can be viewed by following the 1st link below. The 2nd link will take you to a two-page overview of this new appendix.
101.3 Purpose and Intent. The purpose of 780 CMR 120.AA is to provide a more energy efficient alternative to the base code energy for new and existing buildings. A municipality seeking to ensure that construction within its boundaries is designed and built above the energy efficiency requirements of 780 CMR may mandate adherence to this appendix.
780 CMR 120 AA may be adopted or rescinded by any municipality in the commonwealth in the manner prescribed by law.
If adopted by a municipality this appendix, rather than 780 CMR 13, 34, 61, or 93, as applicable, shall govern.
Also at the May 12 meeting a concurrency period and a training policy were approved. Concurrency period is a period when either the new code or the existing code can be used but not comingled. The BBRS approved a concurrency period of 6 months to a maximum of 12 months, with such period to begin on either January 1 or July 1 of any year. In addition a town or city which adopts the appendix must provide training to the building official. If you have comment or questions on this subject please forward them to mike.guigli@state.ma.us
Appendix 120 AA July 9, 2009 Final (270kb)
Stretch Code Adoption Amendment Update 2-4-10 
(125kb)
Stretch Code Overview February 5, 2010 (30kb)