The travel document is something specific to U.S. law. Canada and the U.S. have different law systems. For Canada the calculation is different also for renewing the PR.
Under what conditions do I need to apply for a travel document as a Canadian permanent resident?
I become a permanent resident of Canada several years ago through its provincial nominee program. Due to my business, I have to travel outside the country next month for an extended period of time. I heard that I might need to apply for a travel document. Under what condition do I need a travel document? Currently I couldn’t decide how long I need to be abroad. Can I apply for it when I am outside Canada?