What table is used to store current Business Classifications for Suppliers?

I see that the POS_BUS_CLASS_REQS table store the requests for Business Classifications, but not the current status.  Where is that stored?  I added a classification and it showed up in the POS_BUS_CLASS_REQS table but when I removed it and saved it in the EBS, the classification remained in the table.  And when I entered an Expiration Date, that field never updated.  What am I missing?