The compulsorily required trekking permits for Langtang Treks are:
Langtang National Park (LNP)
Foreigners- USD 30/person
SAARC- USD 15/person
Shivapuri Nagarjuna National Park (Only for Helambu Trek)
Foreigners- NPR 1000/person
SAARC- NPR 600/person
Trekkers Information Management System (TIMS)
Foreigners- NPR 2000/person
SAARC- NPR 1000/person
Diplomats/Foreign Officials & their families- NPR 500/person