What term is used to refer to the provinces and territories of Canada in this context?

The term "jurisdiction" is used to refer to the provinces and territories of Canada in this context because it encompasses the legal authority or control that these regions have to enforce laws and regulations within their boundaries. When discussing various aspects of governance, regulation, or public policy, "jurisdiction" specifically denotes the geographical area and the legal framework in which a province or territory operates. This distinction is important in areas such as regulatory matters, where different jurisdictions may have varying rules and standards applicable to industries, including refrigeration.

While "government," "authority," and "body" might seem relevant, they don't capture the specific legal and administrative dimensions that "jurisdiction" conveys. "Government" refers more broadly to the system or governing body rather than the individual regions themselves. "Authority" suggests power or the right to make decisions, but does not explicitly identify the geographical scope. "Body" is a general term that could refer to any organized group but does not specifically imply a governing entity or regulatory framework.