Nepal’s protected areas require permits whose fees fund trail maintenance and conservation rangers.
TIMS & route-specific permits
Annapurna Conservation Area (ACAP) and Sagarmatha National Park passes are checked at checkpoints. Langtang National Park issues its own entry ticket.
Restricted regions
Upper Mustang, Manaslu, and other border zones need special trekking permits — itineraries must be pre-approved.
2020s reforms
Rules evolve; a licensed agency keeps your group compliant if independent TIMS rules change mid-season.
