40 CFR 1610.4 - Deposition Transcripts.
(a) Transcripts of depositions of witnesses compelled by subpoena to appear during a Board investigation, shall be recorded solely by an official reporter designated by the person conducting the deposition.
(b) Such a witness, after completing the compelled testimony, may file a petition with the Board's General Counsel to procure a copy of the official transcript of such testimony. The General Counsel shall rule on the petition, and may deny it for good cause. Whether or not such a petition is filed, the witness (and his or her attorney), upon proper identification, shall have the right to inspect the official transcript of the witness' own testimony. If such a petition is denied by the General Counsel, he shall inform the petitioner of the right to inspect the transcript.
(c) Good cause for denying a witness' petition to procure a transcript of his or her testimony may include, but shall not be limited to, the protection of: trade secrets and confidential business information contained in the testimony, security-sensitive operational and vulnerability information, and the integrity of Board investigations.