On September 17th, the CFTC requested comment on a request from the Chicago Mercantile Exchange, the Chicago Board of Trade, the New York Mercantile Exchange, the Commodity Exchange, and the Board of Trade of Kansas City, Missouri for approval of amendments to existing Rule 538 of the Exchanges' rulebooks and the issuance of CME Group Market Regulation Advisory Notice RA1311-5. The Exchanges seek to eliminate the use of transitory Exchange for Related Positions transactions ("EFRP") wherein the execution of an EFRP is contingent upon the execution of another EFRP or related position transaction between the parties and where the transactions result in the offset of the related positions without the incurrence of market risk in the context of the related position transactions. The Exchanges also seek approval to amend and/or clarify certain recordkeeping and other compliance obligations relating to non-transitory EFRPs, and to incorporate aspects of the Exchanges' existing guidance on EFRPs set forth in CME Group Market Regulation Advisory Notice RA1006-5 from June 11, 2010, into the text of Rule 538. Comments should be submitted on or before October 18, 2013. CFTC Press Release.