Building Codes Assistance Project

New Hampshire implemented IECC 2006 with a minimum of difficulty on August 17, 2007. In October, after a public hearing, the NH Building Code Review Board amended the code to configure the state into a single climate zone, Zone 6. As written in the IECC 2006, Zone 6 covers a majority of the state's territory and more closely reflects construction standards under the superseded IECC 2000 code.