This wording is straight out of the County's procedures document, Procedure 3-31, as revised 05/01/2018https://webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Administ...
There is a much longer list, of course, but I thought these were worth highlighting here.
Content prohibited by Pima County
--Content that reveals private, personal information without permission
--Copyright, trademark, and intellectual property violations
--Comments in support of or opposition to political campaigns or ballot measures