![IECC](https://neep.org/sites/default/files/wp-content/uploads/2013/07/IECC-1024x1024_2.jpg)
As of July 9, the Massachusetts Board of Building Regulations and Standards (BBRS) voted to approve the 2012 International Energy Conservation Code (IECC) and ASHRAE 90.1-2010, with non-weakening amendments. The Board had previously voted for a one year concurrency period where either the 2009 or 2012 IECC can be used.