On November 26th, NYSE Euronext, in conjunction with other interested members of the Intermarket Surveillance Group, announced the extension to May 1, 2013, of the effective date for firms to submit enhanced data elements for Electronic Blue Sheets. Exchange member organizations must add certain fields to the EBS format by November 30, 2012, as currently required, but are not required to populate them with regard to EBS requests from Exchange and other interested ISG members until May 1, 2013. Firms may voluntarily submit the values of these fields starting November 30th. NYSE Euronext Information Memo 12-27.