First, it’s important to understand what a Tibet Travel Permit is…..and what it is not. TTP’s are not a “Tibet Visa“. Since Tibet is part of China, there is no such thing as a “Tibet Visa”, even though many travel agencies will use this term when referring to TTP’s. When going to Tibet, there is only 1 visa that you need and that is a Chinese Visa (tourist, student, work, business, etc). https://www.thelandofsnows.com/tibet/getting-a-tibet-travel-permit/