英女王驾崩亦令今后加拿大公民入籍仪式上，申请入籍人士宣读的誓词内容改变。
移民部发言人证实，今后入籍仪式上，宣读誓词内的英女王伊莎白二世一词，将会改为英王查理斯三世。
改变后的誓词如下:
「我发誓（或郑重申明）我将忠实并真正效忠于加拿大英王查理斯三世陛下、他的继承人和继任者，我将忠实地遵守加拿大的法律，包括承认和确认原住民、因纽特人和梅蒂斯人的原住民或条约权利，并且我将忠实履行作为加拿大公民的职责。」
(I swear (or solemnly affirm) that I will be faithful and bear true allegiance to His Majesty King Charles, Third King of Canada, to his heirs and successors, that I will faithfully observe The laws of Canada, including the Constitution which recognizes and confirms the Aboriginal or treaty rights of First Nations, Inuit and Métis, and that I will faithfully fulfill my duties As a Canadian citizen.)
