If you're unsure whether your medical exam's 12-month validity window starts from the exam date, the assessment date, or the results date, group members clarified:
- The clock starts when the medical panel physician's clinic sends your results to IRCC — not from the day you physically attended the exam.
- What actually governs your landing deadline is the validity date printed on your COPR and visa themselves, not the underlying medical date. These are the documents you present to the immigration officer, so match your travel plans to those dates rather than trying to calculate from the medical exam date.
In short: don't do your own math from the exam date — just follow the COPR/visa expiry date directly, since that's the document that's checked at the border.