John, since 2008 the new OEB implementetion procedure was initited; since then all ECAM Procedures that have to be disregarded are issued as OEB.
Now, they are MSN specific, because it is in one Aircraft it does not mean it applies to another one. It depends on the modification status of your Aircraft.
If you have access to Airbus World there is a very good presentation on the Operational Liaison Meeting 2008.
G