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.
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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?