Limiting Fax Cover Pages to certain numbers, users or Call Queues

I am currently looking into Fax Cover pages for Online Fax.  For example we are a County Government consisting of multiple departments. I can easily create sheets for individual departments to use but they seem to be available to everyone as I add them.  This makes it too easy for someone to select the wrong one and use a cover sheet with information not pertaining to their respective department.  Can the availability of the cover sheets be limited in some way?