CFR > Title 9 - Animals and Animal Products > CHAPTER I—ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE > SUBCHAPTER G—LIVESTOCK IMPROVEMENT (parts 145 to 149) > PART 145—NATIONAL POULTRY IMPROVEMENT PLAN FOR BREEDING POULTRY > SUBPART G—Special Provisions for Primary Egg-Type Chicken Breeding Flocks and Products (§145.71 to §145.73)