What table stores requisition preferences in v12.2.5?

R12.2.5 Purchasing - Internal Requisitions

I'm trying to write a trigger-based alert that compares requisition charge accounts to those set in preferences.  We have a workflow that builds requisition charge accounts to avoid coding errors, but when a user puts in an account combo in their preferences, it overrules everything.  But in order to write such an alert to compare these two things, I need to read the user's requisition preferences and I don't know where to find them.

Here is a visual of what I'm trying to find in a table:

Where are requisition preferences stored?  I'd imagine that it is stored as a GL CCID somewhere.