CFR > Title 5 - Administrative Personnel > CHAPTER I—OFFICE OF PERSONNEL MANAGEMENT > SUBCHAPTER B—CIVIL SERVICE REGULATIONS (parts 110 to 990) > PART 295—TESTIMONY BY OPM EMPLOYEES RELATING TO OFFICIAL INFORMATION AND PRODUCTION OF OFFICIAL RECORDS IN LEGAL PROCEEDINGS > SUBPART B—Requests for Testimony and Production of Documents (§295.201 to §295.210) > 295.204—Service of subpoenas or requests.