CFR›Title 21›Chapter I›Part 900 ContainsSubparts A–CCorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 900—MAMMOGRAPHY Subparts A Subpart A—Accreditation Sections 900.1–900.9 B Subpart B—Quality Standards and Certification Sections 900.10–900.18 C Subpart C—States as Certifiers Sections 900.20–900.25 Authority21 U.S.C. 360i, 360nn, 374(e); 42 U.S.C. 263b.Source62 FR 55976, Oct. 28, 1997, unless otherwise noted. Republished and corrected at 62 FR 60614, Nov. 10, 1997. Previous 898 Part 898—Performance Standard for Electrode Lead Wires and Patient Cables Next 1000 Part 1000—General