Forever. Whether you were convicted of a DWAI, DWI, or Aggravated DWI, the convictions remain on your criminal history report forever. You may wish to obtain a lifetime abstract from DMV, which contains all convictions for the duration of your driving history in New York state.  In New York State, there is a 25 year look back on your driving record where prior DWAI/DWI convictions can affect whether you are eligible to obtain your license back.