1.  American Bankers Association: Letter from Cristeena G. Naser, Senior Counsel, Center for Securities, Trust & Investments, dated February 28, 2008

2.  Council of Infrastructure Financing Authorities: Letter from Rick Farrell, Executive Director, dated February 25, 2008

3.  First Southwest Company: Letter from Jack Addams, Managing Director, Public Finance, dated February 25, 2008

4.  Government Finance Officers Association; National Association of State Auditors, Comptrollers and Treasurers; National Association of State Treasurers: Letter from Jeffrey L. Esser, GFOA Executive Director and CEO; Vernon L. Larson, NASACT President & South Dakota State Treasurer; and Lynn Jenkins, NAST President & Kansas State Treasurer; dated February 25, 2008

5.  Investment Company Institute: Letter from Heather Traeger, Assistant Counsel, dated February 25, 2008

6.  National Association of Bond Lawyers: Letter from J. Foster Clark, President, dated February 25, 2008

7.  National Association of Health and Education Facilities Finance Authorities: Letter from Robert Donovan, Executive Director, Rhode Island Health and Educational Building Corporation, and Stephen M. Fillebrown, Director of Research, Investor Relations and Compliance, New Jersey Health Care Facilities Financing Authority, dated March 3, 2008

8.  National Association of Independent Public Finance Advisors: Letter from Kathleen A. Aho, President, dated March 10, 2008

9.  National Federation of Municipal Analysts: Letter from Rob Yolland, Chairman, dated March 10, 2008

10.  Securities Industry and Financial Markets Association: Letter from Leslie M. Norwood, Managing Director and Associate General Counsel, dated February 25, 2008