Applying to University of Waterloo and University of Toronto

I applied to the University of Toronto using their online application, assuming that I won’t apply to Waterloo. However, I realised what a brilliant university this is and how I’d love to be a part of this university. Can I still use the OUAC application to apply to University of Waterloo, or do I have to take permission or something? I’m an international student, btw.

Hi…I went through the same situation as you…but got done with it…so…you are from india.?did you join UW?