As the world continues to grapple with the COVID‐19 pandemic, the preparedness of governments to respond to it will likely undergo review. A key component is the legislative capacity and authority that governments had in place or could rapidly introduce to address the social, economic and health consequences of the emergency. We review Canada’s legal preparedness for public health emergencies and the use of federal legislation to address the pandemic. We provide an overview of the concept of legal preparedness, summarize the federal statutes, regulations and orders enacted, and analyze the coherence of federal activity and its relevance to provinces, territories and international health regulations. We determine that the federal government has relied on spending power rather than constitutional authority over public health or existing legislation on influencing the course of the pandemic.