You'll find some Agreements are Open Ones, in that the Landowner might just request that they are informed of the cache location. Permission is such that you do not have to contact the Landowner in advance.
The majority are closed ones, where the Landowner requires those placing caches on their Land to contact them for each placement in advance.
There are one or 2 which are person specific, that's where permission is restricted to One Specific named person.
Deci
My post is my personal opinion and as such you do not have my permission to quote me outside of these forums!
Dave
Brenin Tegeingl
Formerly known as Mancunian Pyrocacher on GC