The Emergencies Act allows a government to invoke temporary measures, including barring people from gathering or travelling to certain locations, to protect national security, public order and public welfare.
Trudeau consulted premiers about using the Emergencies Act earlier Monday about the use of the act, which could give the federal government temporary and extraordinary powers to curtail the demonstrations. That followed an urgent meeting with his cabinet Sunday night.
The limit for informal gatherings has increased to 25 people from 10 people, but formal events such as weddings, funerals and faith services can still only operate at 50% capacity.
Trudeau says the people still illegally blocking streets in Ottawa and border crossings to the United States must go home or face increasingly severe consequences that could ruin their lives.