This is what dave23 is talking about
:
http://allnurses.com/forums/f75/sche...ed-230663.html
The Schedule A category in the Visa Bulletin was deleted months (since the Feb. 2007 Visa Bulletin if I'm not mistaken) ago but USCIS still maintains the 'Schedule A' for their Service Center reports just to report the processing time for those who have filed under it when it
was still available.
Another way of saying it is that they are still reporting the processing time for Schedule A's that filed under it since some of the I-140s that were filed under it when there was still a Schedule A category in the Visa Bulletin are still being processed up to now.
Last Jan.15 saw it 'disappear' but it was just a mistake in their part and they quickly revised it afterwards (Jan 18 report).