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(f) a person who is exempt from the requirement to obtain a temporary resident visa under paragraph 190(2)(a) of the Immigration and Refugee Protection Regulations and the immediate family members of that person;

That part of the immigration and refugee act applies to diplomats (and similar).
 
(f) a person who is exempt from the requirement to obtain a temporary resident visa under paragraph 190(2)(a) of the Immigration and Refugee Protection Regulations and the immediate family members of that person;

Diplomats.