A state of emergency is a formal declaration by government authorities that activates extraordinary powers to respond to crisis situations threatening public safety, health, or welfare. Emergency declarations can be made at municipal, provincial, or federal levels, each activating different powers and resources. Declared emergencies may allow governments to requisition resources, restrict movement, mandate evacuations, bypass normal procurement rules, and coordinate emergency response across agencies. Emergency management legislation specifies who can declare emergencies, what powers are activated, and oversight requirements. Recent examples include COVID-19 pandemic declarations and responses to wildfires, floods, and other disasters. Emergency declarations are temporary, with requirements for regular review and termination when conditions allow.