Foreigners must apply for Tibet Visa for traveling to Tibet. Besides of Tibet Permit, there is another common paper called Aliens’ Travel Permit, which is for visiting some certain area, such as Mt. Everest.
Tibet Travel Permit which is issued by Tibet Tourism Bureau (TTB) is a kind of basic paper for foreign travelers to enter Tibet. So, what is it exactly? Why must apply for Tibet permit? And how to apply for it?