1.  Acacia Financial Group, Inc.: Letter from Kim M. Whelan, Co-President, dated February 25, 2011

2.  American Bankers Association: Letter from Cristeena G. Naser, Senior Counsel, dated February 25, 2011

3.  American Governmental Financial Services: E-mail from Robert Doty, President, dated March 1, 2011

4.  BMO Capital Markets GKST Inc.: Letter from Robert J. Stracks, Counsel, dated February 25, 2011

5.  Callcott, W. Hardy: Letter dated February 8, 2011

6.  Fisher, Robert: E-mail dated February 25, 2011

7.  G.L. Hicks Financial LLC: E-mail from Dareth Goulding, dated January 14, 2011

8.  H.J. Umbaugh & Associates: Letter from Gerald G. Malone, dated February 24, 2011

9.  National Association of Independent Public Finance Advisors: Letter from Colette Irwin-Knott, President, dated February 24, 2011

10.  Repex & Co., Inc.: E-mail from Erich Sokolower, dated January 14, 2011

11.  Securities Industry and Financial Markets Association: Letter from Leslie M. Norwood, Managing Director and Associate General Counsel, dated February 25, 2011

12.  State of Texas: Letter from Susan Combs, Texas Comptroller of Public Accounts, dated February 25, 2011

13.  State of Texas: Letter from Charles B. McDonald, Assistant Attorney General, Office of Attorney General of Texas, dated February 25, 2011

14.  T. Rowe Price: Letter from David Oestreicher, Chief Legal Counsel, dated February 25, 2011

15.  The PFM Group: Letter from Joseph J. Connolly, General Counsel, dated February 23, 2011

16.  WM Financial Strategies: Letter from Joy A. Howard, Principal, dated February 21, 2011