In Canada, if you are a British Citizen and Canadian PR, is your?
Not on exit. I dont know about entry. As noted elsewhere, Canada does not yet have exit controls, but we are getting closer to seeing them in effect. Do not believe anyone who tells you that you dont always need your Passport while entering Canada, you need both your British (or other) passport to establish citizenship, and your PR card to show your right to enter Canada. Im not sure how it works in airports, but if you are leaving Canada by a land crossing, you can stop voluntarily at Canadian customs. You may want to do this (not your situation, questioner, just a suggestion) if you are required to leave Canada by a certain date, or if you have any expensive gear such as high-end cameras or musical instruments. You can register the latter and get a card to keep with them, so that when you return to Canada, you can prove that you did not acquire the gear while in the US and are not subject to duty or taxes on it. Neither Canada or the US want to double all their customs resources and cause more delays by screening everyone leaving the country, but the more authoritarian agencies and governments (within these countries) would love to get to the point of routinely sharing all entry info with each other, which would be de facto exit control without the physical interaction/facility expansion. It is clear that this is now easily technically feasible with the new digital fingerprint passports, I noticed last month when our family returned from a Christmas roadtrip that the Canadian customs, like the US ones had, kept our passports long enough to actually scan and record our re-entries rather than giving them a quick glance and returning them. Fortunately there is enough mistrust between our countries that this total-info-sharing option is not politically acceptable yet, but were probably one crisis away from being manipulated into accepting it. Update: this info-sharing is definitely getting closer to reality. It seems Canadian and US border agencies can and do share arrival info of each others citizens, but not of their own citizens. This gives both countries effective exit controls over anyone crossing the US/Canada border. Ergo, if Lil Ol Canadian Me (LOCM) enters the US, US may report that to Canadian authorities. Canada will not report to the US when LOCM returns to Canada, (they are not yet allowed to inform on their own citizens; pesky civil rights) but since they have the info as to when I entered the US, they know my duration of stay there, which affects my duty-free allowance, and when compiled for the year, they can tell if I was absent from Canada for a length that would affect my eligibility for health care or other government-issued benefits. And if you are, say, a Chinese citizen with Permanent Residency here, Canadian Border Services can, with the US data, track how long you were out of the country for residency-and-citizenship-qualification purposes.