CFR > Title 25 - Indians > CHAPTER I—BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR > SUBCHAPTER H—LAND AND WATER (parts 150 to 183) > PART 166—GRAZING PERMITS > SUBPART D—Land and Operations Management (§166.300 to §166.317) > 166.310—What must a permittee do to protect livestock from exposure to disease?