the judicial district where the hearing is conducted or where that person is found, resides, or transacts business. Any failure to obey the order of the court may be punished by the court as civil contempt. (C) Service of subpoenas The subpoenas of the Panel shall be served in the manner provided for subpoenas issued by a United States district court under the Federal Rules of Civil Procedure for the United States district courts. (D) Service of process All process of any court to which application is made under subparagraph (B) may be served in the judicial district in which the person required to be served resides or may be found. (o) Public health emergency defined In this section, the term public health emergency means a public health emergency for which a declaration is in effect under section 319. .