On October 22nd, the SEC provided notice of NYSE Arca's proposal to modify Rule 6.47(a) to describe new procedures for Floor Brokers wishing to execute a Non-Facilitation cross transaction. Currently, after requesting a market, Floor Brokers are required to disclose the terms of a cross, after which Market Makers are allowed to revise their bids and offers to block the cross. NYSE Arca proposes that Market Makers, after being informed of a potential cross, provide their best bid and best offer, but not be allowed to step ahead of subsequently disclosed trading interest. Comments should be submitted on or before November 18, 2010. SEC Release No. 34-63166.