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The Model National Energy Code of Canada for Buildings 1997 (MNECB) contains cost-effective minimum requirements for energy efficiency in new buildings. The MNECB applies to all buildings, other than houses of three storeys or less, and to additions of more than 10 m2 to such buildings. See the Table of Contents.

The MNECB is prepared under the auspices of the Canadian Commission on Building and Fire Codes (CCBFC) and was first published in 1997 by the National Research Council Canada (NRC). Under Canada's Constitution Act, building regulation is the responsibility of provincial and territorial governments.

Energy efficiency is closely linked to concerns for the environment, which has become an important priority for Canadians. After consultation with provinces, territories and stakeholders, the CCBFC agreed at its February 2007 meeting to update the MNECB 1997. This project is made possible by a unique collaboration between two federal government departments, Natural Resources Canada and the NRC, which are both contributing resources and expertise. They will work together, along with the provinces and territories, to support the work for the updating of the MNECB under the leadership of the CCBFC.

The next edition of the MNECB is scheduled to be released in 2011. The Code will be published in an objective-based format, which will offer new information to facilitate the evaluation of innovative products and systems. The first step in the compilation of the objective-based material for the updated MNECB will be the analysis of all the provisions in the 1997 edition.