Which power is unique to the federal government in Canada?

The power to regulate trade and commerce is unique to the federal government in Canada because it falls under the jurisdiction grants outlined in the Constitution Act, 1867. This power allows the federal government to create laws and policies that govern trade across provincial and national borders, ensuring a level playing field and consistency in regulations throughout the country.

In contrast, regulating local businesses is typically managed at the provincial level, focusing on domestic economic activities that do not influence interprovincial or international trade. The enforcement of provincial laws is solely within the realm of provincial governments, who have the authority to create and enforce legislation pertinent to their own jurisdictions. Lastly, public health management often involves provincial responsibilities, as health services and regulations are primarily a provincial concern. Thus, the ability to regulate trade and commerce stands out as a key power granted exclusively to the federal government.