From OpenStreetMap Wiki
The proposal suggests a way to indicate that permits are required for certain areas.
- National parks
- Be able to specify different permit classes on the members, so you don't need to have multiple relations for similar permits
- Have a role type which indicates where to get the permits
Usage Tags and Values
|url||*||Where to get information about the permits|
|fee||yes, no||Whether permits require payment (or are free)|