The judge shall notify the hearing clerk of the close of a hearing as soon as possible thereafter and of the time for filing written arguments, briefs, proposed findings and proposed conclusions, and shall furnish the hearing clerk with such other information as may be necessary. As soon as possible after the hearing, the judge shall transmit to the hearing clerk an original and three copies of the transcript of the testimony and the original and all copies of the exhibits not already on file in the office of the hearing clerk. He shall attach to the original transcript of testimony his certificate stating that, to the best of his knowledge and belief, the transcript is a true transcript of the testimony given at the hearing except in such particulars as he shall specify; and that the exhibits transmitted are all the exhibits as introduced at the hearing with such exceptions as he shall specify. A copy of such certificate shall be attached to each of the copies of the transcript of testimony. In accordance with such certificate the hearing clerk shall note upon the official record copy, and cause to be noted on other copies, of the transcript each correction detailed therein by adding or crossing out (but without obscuring the text as originally transcribed) at the appropriate place any words necessary to make the same conform to the correct meaning, as certified by the judge. The hearing clerk shall obtain and file certifications to the effect that such corrections have been effected in copies other than the official record copy.