The National Building Code of Canada (NBC) and the National Energy Code of Canada for Buildings (NECB) are model legal documents the provinces and territories can choose to adopt or reference in order to regulate the safety, fairness, and energy efficiency of the building industry.

Some of the provinces/territories have adopted the NBC or NECB with regionally specific amendments, while others develop their own building codes, or leave it up to the municipalities to govern. Lately though, there has been an increasing interest in unifying the country's building industry by enforcing the national codes everywhere.

The three main topics this module will review are:

1. What types of construction need to follow the NBC and NECB?
2. How do the NBC and NECB regulate the use of building envelope materials and products?
3. How do energy efficiency requirements in the NBC and NECB affect building design?