<prompt> Translate the following text to EnglishJina la mwombaji wa Congress au mamlaka ya kisheria ya GAO kufanya kazi kwa mpango wake mwenyewe ambayo inakusudiwa kusaidia Congress, na tarehe ya kukamilika inayotarajiwa, ikiwa inajulikana.  <response>: name of the congressional requesters, or legal authority allowing GAO to undertake work on its own initiative that is intended to support the Congress; and the expected completion date, when known. 