Attorneys who are practicing before this court are empowered by Rule 45 of the Federal Rules of Civil Procedure to issue subpoenas for depositions or documents in any other federal court district.  The standard subpoena form should be used and will contain the Utah heading and case number.  The attorney will serve the necessary notices when issuing a subpoena.
When the return of service is made, the attorney holds the return. It is not filed in the Utah file.
If further proceedings, such as a notice of appeal, a motion to compel or motion to quash are filed, the attorney must open a miscellaneous case in the other district in order to litigate the validity of the subpoena.