The legislation indicates that there's a period of about 36 months to communicate with an individual to notify them that they owe money, unless there is fraud or intentional misrepresentation, in which case that period of time is extended. When you think about some of the first payments under CERB going out in March of 2020, that time frame is quickly approaching. As I mentioned earlier, there were likely some very honest mistakes by people who were just confused. Those need to be identified in that time frame, or the government can't notify them and then proceed with the next step of deciding whether collection is the avenue to take.
On February 2nd, 2023. See this statement in context.