​​​​​This 2009 edition represents the code as originally issued, with changes reflected in the 2006 edition, and further changes developed through the ICC Code Development Process through 2008.  Residential electrical provisions are based on the 2008 National Electrical Code® (NFPA 70).  A new edition such as this is promulgated every three years.

This code is founded on principles intended to establish provisions consistent with the scope of a residential code that adequately protects public health, safety and welfare; provisions that do not unnecessarily increase construction costs; provisions that do not restrict the use of new materials, products or methods of construction; and provisions that do not give preferential treatment to particular types or classes of materials, products or methods of construction.​​

​​The International Residential Code is available for adoption and use by jurisdictions internationally. Its use within a governmental jurisdiction is intended to be accomplished through adoption by reference in accordance with proceedings establishing the jurisdiction's laws.

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Internationally, code officials recognize the need for a modern, up-to-date residential code addressing the design and construction of one- and two-family dwellings and townhouses. The International Residential Code ®, in the 2009 edition, is designed to meet these needs through model code regulations that safeguard the public health and safety in all communities, large and small.

​​This comprehensive, stand-alone residential code establishes minimum regulations for one- and two-family dwellings and townhouses using prescriptive provisions. It is founded on broad-based principles that make possible the use of new materials and new building designs. This 2009 edition is fully compatible with all the International Codes ® (I-Codes ®) published by the International Code Council ® (ICC). Double click here to edit this text.

​​​​The first edition of the International Residential Code (2000) was the culmination of an effort initiated in 1996 by ICC and consisting of representatives from the three statutory members of the International Code Council at the time, including: Building Officials and Code Administrators International, Inc. (BOCA), International Conference of Building Officials (ICBO) and Southern Building Code Congress International (SBCCI), and representatives from the National Association of Home Builders (NAHB). The intent was to draft a stand-alone residential code consistent with and inclusive of the scope of the existing model codes.
                                                  2009 INTERNATIONAL RESIDENTIAL CODE (IRC - BUILDING CODE)