CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER C—DRUGS: GENERAL (parts 200 to 299) > PART 225—CURRENT GOOD MANUFACTURING PRACTICE FOR MEDICATED FEEDS > SUBPART B—Construction and Maintenance of Facilities and Equipment (§225.20 to §225.35)