Dual Canadian British citizens are facing a new set of passport rules that have caught them off-guard, leaving many confused and frustrated. The sudden change, announced quietly in the fall, requires all citizens to use a British or Irish passport to enter the United Kingdom. This has led to a scramble for many dual nationals to renew or apply for U.K. passports, with some facing the costly options of obtaining a certificate of entitlement or renouncing their citizenship. The new rules are linked to the recent rollout of the Electronic Travel Authorization (ETA) requirement to enter the U.K., which brings the country in line with similar entry systems in the U.S. and Canada. While some U.K. MPs are calling for a grace period and warning of 'haphazard communication' that could leave some travellers stranded abroad, the British high commissioner to Canada, Rob Tinline, says the change is part of a transition to a digital immigration system that enhances border security. The new passport rules have sparked controversy, with some arguing that they are discriminatory, as some countries require women to keep their maiden name after marriage. Several dual citizens who spoke with CBC News said different surnames or middle names are also creating complications. The change has left many feeling unwelcome by the country they grew up in, and has led to a sense of confusion and frustration among dual nationals. The British Home Office has said that airlines could, 'at their own discretion,' accept an expired passport as an alternative document, but this won't help people who recently applied for a British passport and sent their expired one away as part of the process. For Sarah Byron, getting a new U.K. passport is proving to be especially complicated, as her expired British passport has her middle name, but her valid Canadian one does not. She is going to try and contact the British government to figure out a solution, and is holding off on making travel plans for now. The new rules have sparked a debate about the impact on dual nationals and the need for better communication from the U.K. government. Many are left wondering if the change was necessary and if there was a better way to implement it. The controversy has led to a call for discussion and debate, with many questioning the implications of the new passport rules and the impact on dual nationals.