House Science, Space and Technology Committee, 31 March 2011 (PDF)
House Subcommittee on Energy and Power, 8 March 2011 (PDF)
House Ways and Means Committee, 25 Feb 2009 (PDF)
Senate
Commerce, Science and Transportation Committee, 14 Nov 2007 (PDF)
House Subcommittee on Energy and Air Quality, 7 March 2007 (PDF)
House Committee on Government Reform, 20 July 2006 (PDF)
House
Subcommittee on Oversight, Energy and Commerce, 27 July 2006 (PDF)
Congressional
Record 23 May 2003 JRChristy, African Experience (PDF)
House
Committee on Resources 13 May, 2003
** Verbal
Remarks
Senate
Committee on the Environment and Public Works 2 May, 2001
** Verbal
Remarks
** Written Remarks
** PowerPoint Presentation
Senate
Committee on Commerce, Science and Transportation 17 May 2000
House
Committee on Small Business, 29 July 1998
Senate
Committee on the Environment and Public Works, 10 July 1997
House
Committee on Science, 9 March 1996
