Guidance Interpretive LetterInterpretive Letter to Russell D. Sacks, Shearman & Sterling LLPApril 28, 2014 NoticeRegulatory Notice 11-41September 12, 2011 NoticeNotice to Members 05-17March 01, 2005 Interpretive LetterInterpretive Letter to Mark W. Riepe, Charles Schwab & Co., Inc.August 20, 2004