On what aspect does Ontario's 2024 Building Code primarily base itself?

The basis of Ontario's 2024 Building Code being primarily aligned with the 2020 National Building Code and incorporating various other codes is correct, as it reflects the ongoing evolution and harmonization of building regulations across Canada. The National Building Code serves as a model code, laying the foundation for provinces and territories to develop their codes with necessary local adaptations. By incorporating updates and amendments from the 2020 National Building Code, Ontario ensures that its regulations benefit from the most current practices and standards that address safety, health, accessibility, and structural adequacy among other concerns.

In addition to the National Building Code, Ontario’s code also considers other relevant codes and standards, ensuring that the local context and specific requirements of the province are met. This multifaceted approach allows for a more comprehensive, up-to-date framework that supports building safety and integrity in Ontario while retaining alignment with national standards.

Relying solely on local Ontario codes or international standards would not provide the same level of integration and continuity with national building practices, which could lead to potential inconsistencies in safety and performance. Hence, the choice of the 2020 National Building Code as a primary basis for Ontario's 2024 Building Code, along with other applicable codes, represents a balanced approach to building