Ladakh Protected Area Permit, or PAP, is a government issued document to foreign tourists. It is a permit to be allowed entry to restricted areas for a limited period of time. Places located near LOC (Pakistan) & LAC (China) require civilians to acquire this permit in order to visit. The sole purpose of this permit is to keep a check on movement in these areas.
Some of the places that require PAP :
Dah and Hanu Villages
No permit is required for local sight seeing around Leh, Zanskar Valley, Suru Valley. Foreigners aren’t allowed to go visit Changthang valley, that is to go beyond Merak Village along Pangong Tso or Mahe Village if you are coming from Chumthang or More plains side. However, after procuring PAP, any foreign national can travel as far as villages of Man and Merak or till Loma post if driving through Upshi and Chumathang. Hanle is still not accessible for foreigners. In Nubra Valley, tourists can now travel as far as Pachatang and Tyakshi villages, beyond Turtuk. Permits are now also issued for Kargil, Chitkan, Dah, Garkone, Darchik and Batalik.
Up until now, tourists were required to get in touch with a registered travel agent in order to acquire a PAP however this has now been changed. Anyone in need of a PAP can log in to the official website of Leh and submit a request for PAP. The link is as below,
Official Leh Website: http://leh.nic.in/default.htm
Link to PAP request : http://www.lahdclehpermit.in/
STEPS FOR ACQUIRING A PERMIT:
1. To register for permit, on the home page click on the overseas clients button.
2. Fill the form correctly, select the firm carefully (once you have selected the firm you cannot change it).
3. Submit the form and keep the print with you for the reference id.
Please take a look at the following post for more information on protected area permit.
Link above should provide you more information on what PAP is, what are the documents required, how long is it valid etc. If you have any further questions, feel free to comment and ask.