Hi Gary. I would really recommend a Q&A session to see how to best set this up ( http://www.clarizen.com/live-demo.html), but here are some quick tips:
Use milestones for these admin buckets since they won't load resources or trigger notifications
Remember to mark the milestones as reportable, and assign the right resources
Don't bother with duration or dates, these milestones will continue to show up on timesheets indefinitely unless marked as completed
Keep these milestones in one project to make them easy to administer