It's a standard. There are differences between the two. One is like a recommended thing to do. The other one is like an obligation to do it, because we're a member of the ICAO.
In all the discussion here, since you are aware of this issue for certain Hong Kongers who've entered Canada and who become permanent residents—there will be more of them, as thousands more continue to apply for PR and eventually, after all the delays, will get it—have you communicated with the ICAO?