CFR›Title 4›Chapter I›Part 28›Subpart B›Subject Group Subpoenas ContainsSections 28.46–28.50CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 28.46 § 28.46 Motion for subpoena. 28.47 § 28.47 Motion to quash. 28.48 § 28.48 Service. 28.49 § 28.49 Return of service. 28.50 § 28.50 Enforcement. Previous Parties, Practitioners and Witnesses Parties, Practitioners and Witnesses