Regulations generally come into force on either a date specified in the regulation itself or, if no date is specified, on the date that regulation was filed. (Note that this is not the case for Newfoundland, Prince Edward Island, or Québec.)

The coming into force provisions for a regulation are usually found in the Regulations Act (or equivalent) of a jurisdiction:

• Federal: “Every enactment that is not expressed to come into force on a particular day shall be construed as coming into force … (b) in the case of a regulation, on the expiration of the day immediately before the