14 CFR 1263.102: Procedure when a demand is issued in a legal proceeding involving the United States.

Whenever an employee or former employee of NASA receives a demand for production of materials or the disclosure of information, or for appearance and testimony as a witness in a legal proceeding in which NASA or the United States is a party, the employee shall immediately notify in writing the Installation Chief Counsel for Installation employees, the General Counsel for Headquarters employees, or the Attorney-Adviser to the Inspector General (IG) for IG employees. This notice must include copies of all pertinent legal documents and a summary of the employee's knowledge concerning the legal proceeding in question. When necessary, this information may be reported orally, followed by a written confirmation.