8 th Edition MA Residential Code is effective as of February 4, 2011

The 8 th edition residential code (for one and two family dwellings and townhouses three stories and less) became effective with the February 4, 2011 Massachusetts Register. The 7 th edition residential code will remain in effect concurrently with the new 8 th edition until August 4, 2011. During the concurrency period a project can be designed using either edition. The deadline for filing a permit application for projects designed using the 7 th edition is August 3, 2011.

The 8th edition residential code is comprised of the International Residential Code 2009 (IRC) and a separate package with Massachusetts amendments. The IRC is sold by the International Code Council www.iccsafe.org and the Massachusetts amendments package will be available at the State House Bookstore (617-727-2834).