I also completed the temporary import and completed ON registration as well as got license here. But i heard from my friends that US customs team at the border can't issue import document without having the export details. Without the import document, we cant register the car at US. Hence hoping that I have to complete the export process inorder to avoid any further issuesI ended up completing the import process (got license Ontario license plates) however I have not done anything about the export issue. Since I'm planning to relocate back to US in the near future, I think I may just try to not do the export at all at this point...