(a) A contract reporter of the Postal Service under the supervision of the presiding officer shall report hearings. The reporter shall supply the parties with copies of the transcript at rates not to exceed those fixed by contract between the Postal Service and the reporter.

(b) Changes in the official transcript may be made only when they involve substantial errors. A party may file a motion for correction of the official transcript within 10 days after his or her receipt of the transcript or any part thereof. Other parties shall, within such time as may be specified by the presiding officer, notify the presiding officer in writing if they object to the requested corrections. Failure of a party to interpose timely objection to a proposed correction may be considered by the presiding officer to be concurrence. The presiding officer shall then specify the corrections to be made in the transcript. He or she may on his or her own initiative order corrections in the transcript after notice to the parties subject to their objection.