@Danielt949; If doing a major re-design, consider a combo for the areas and use the Not In List event thus eliminating extra form(s) and controls (listbox). Don't know if mike60smart's comment about look ups refers to what I think it does. If so you should read this
The evils of lookup fields - http://access.mvps.org/access/lookupfields.htm
Many times I've posted links to help novices and if you want to save yourself some grief down the road, consider reviewing. See post 2 here
https://www.accessforums.net/showthread.php?t=88502
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.