<prompt> Translate the following text to EnglishHadi sasa, Msimamizi Mkuu hajawahi kuondoa viwango vya kazi ya shambani, viwango vya kuripoti, au taarifa juu ya viwango vya kazi za uthibitisho.  <response>: To date, the Comptroller General has not excluded any field work standards, reporting standards, or statements on standards for attestation engagements. 