<prompt> Translate the following text to EnglishMnamo Julai 18, 2001, Msimamizi Mkuu wa Serikali ya Marekani alimtumia Makamu wa Rais wa Marekani, katika nafasi yake kama Mwenyekiti wa NEPDG, barua ya kuwakilisha Marekani.  <response>: On July 18, 2001, the Comptroller General issued a letter to the Vice President in his capacity as Chair of the NEPDG, under 31 U.S.C. 