Canada is a signatory to the treaty on non-proliferation. This requires us to forbid developing or acquiring nuclear weapons, and it also obligates Canada to accept safeguards verification from the International Atomic Energy Agency. It also requires us to implement export controls to ensure that any nuclear transfers don't contribute to other nations' nuclear programs.
From an SMR perspective, the proponents will need to demonstrate that they meet CNSC's requirements in this respect. It's part of our mandate to make sure that we meet the international obligations to which we are signatories.