https://www.cbc.ca/news/politics/canada-united-states-travel-warning-1.7648381
The Canadian government is warning citizens who list “X” as their gender on their passports could have problems entering the U.S. and other countries.
In a change made in recent days, the Department of Global Affairs added an advisory to its United States travel advice page for 2SLGBTQ+ Canadian passport holders.
“While the Government of Canada issues passports with an ‘X’ gender identifier, it cannot guarantee your entry or transit through other countries,” it wrote. “You might face entry restrictions in countries that do not recognize the ‘X’ gender identifier.”