If I've understood correctly, you need a PCC in order to immigrate to Canada. If my understanding is correct then yes, the PCC would be submitted to the Canadian immigration authorities, i.e., IRCC.
If you are unaware of IRCC as the central entity in this entire process, might I suggest re-orienting the gathering of your paperwork to give it some structure? For example, the Document Checklist that corresponds to the category under which you are applying? Forgive my saying so, but you seem . . . under prepared for the task at hand.