Cliff,
Don't know if it is more ICAOization of the FAA but the FAA now calls it OE. Might be that you get a babysitter after Upgrade or Transition training too. Or if you have an AQP (which the FAA is pushing), there is LOE which looks a lot like IOE. Who knows. At the job prior to my present job (which is the same as your present job) we changed terminology 3 or 4 years ago.