In the wake of the 2020 Nova Scotia attacks, Trudeau announced on May 1, 2020, that 1,500 models of "assault-style" weapons, largely semi-automatic guns, would be classified as prohibited effective immediately. However, the term "assault-style" is not defined in Canadian law."Trudeau announces ban on 1,500 types of 'assault-style' firearms — effective immediately," CBC, May 1, 2020. The law grants a three-year amnesty period to allow current owners to dispose, export, register, or sell them (under a buy-back scheme), and for special uses.
