40 CFR 1611.4 - Manner in which testimony is given in civil litigation.
(a) Testimony of CSB employees with unique, firsthand information may be made available for use in civil actions or civil suits for damages arising out of incidents through depositions or written interrogatories. CSB employees are not permitted to appear and testify in court in such actions.
(b) Normally, depositions will be taken and interrogatories answered at the CSB's headquarters in Washington, DC, and at a time arranged with the employee reasonably fixed to avoid substantial interference with the performance of his or her duties.
(c) CSB employees are authorized to testify only once in connection with any investigation they have made of an incident. Consequently, when more than one civil lawsuit arises as a result of an incident, it shall be the duty of counsel seeking the employee's deposition to ascertain the identity of all parties to the multiple lawsuits and their counsel, and to advise them of the fact that a deposition has been granted, so that all interested parties may be afforded the opportunity to participate therein.
(d) Upon completion of the deposition of a CSB employee, the original of the transcript will be provided to the deponent for signature and correction, which the CSB does not waive. A copy of the transcript of the testimony and any videotape shall be furnished, at the expense of the party requesting the deposition, to the CSB's General Counsel at Washington, DC headquarters for the CSB's files.
(e) If CSB employees are required to travel to testify, under the relevant substantive and procedural laws and regulations the party requesting the testimony must pay for the costs, including travel expenses. Costs must be paid by check or money order payable to the Chemical Safety and Hazard Investigation Board.