A registration number from the Canadian Kennel Club is required to enter any CKC event.
If you do not have a registration number from the CKC yet, you now have to get a temporary competition number (TCN) before you enter.
This is a requirement as of March 2, 2020.
How to obtain a Temporary Competition Number (TCN) Number
WARNING: If a foreign born dog obtains points while in Canada, you have 30 days to send in your application for registration in to the Canadian Kennel Club. Otherwise the dog will lose any points it received before being registered.