Building codes in Canada follow a unique structure: the federal government develops a national model code through the Canadian Commission on Building and Fire Codes, but since construction regulation is provincial jurisdiction, each province adopts and enforces its own version. Most provinces adopt the National Building Code with provincial amendments addressing local conditions or policy priorities. This creates general consistency across Canada while allowing provincial flexibility. The code development process involves extensive technical consultation. Updates address new construction methods, materials, energy efficiency requirements, and accessibility standards. Building codes apply to new construction and major renovations, ensuring buildings meet current safety standards.