Two cases in point from Europe and the U.S. over the last couple of days:
Datalex announced it now supports ATPCO Optional Services (OC) data.
This is an ATPCO standard that enables airlines to file their automated baggage rules and ancillary fees, and would enable global distribution systems to access the data for distribution purposes.
Read the full story at http://www.tnooz.com/2010/10/20/news/datalex-opentravel-gear-up-for-optional-services/