A trekking permit is required to trek in any part of Nepal covered by national parks and conservation. You must get two licenses to hike two different areas, such as Annapurna and Everest. Each access requires details for the trekking route and region. Police check points are set up in other places, so do not venture off the hard way unless you carry cigarettes for officers.
For a recent update on Special trekking permit fees, please open Trekking Permit Fees for more details. ABOUT PERMIT