First let's make sure I'm thinking about this correctly. In Management Console->Policies I create a policy called "North Printer". Then I goto the properties on that policy->Printing->Session Printers and add a printer. Then I goto the "Apply policy to" and add users and/or groups and then that printer will show up in their Citrix session. Assuming this is correct, removing that user or group should then remove that printer from the next session opened. Well, in my case it is not. When I add a group to a policy the printers will show up at next login. The printer does not go away, though, when I remove that group from the policy then log in again.