From OpenStreetMap Wiki
|whether a fee is charged|
|Used on these elements|
|Tools for this tag|
The fee tag is for specifying whether a fee is usually charged for a service, or for access.
- fee=yes - a fee is usually charged
- fee=no - no fee usually charged
- fee=interval - fee charged only on certain hours of the day, use the same syntax as for opening hours. (See the discussion.)