CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER I—MAMMOGRAPHY QUALITY STANDARDS ACT (parts 900 to 900) > PART 900—MAMMOGRAPHY > SUBPART B—Quality Standards and Certification (§900.10 to §900.18) > 900.10—Applicability.