146.5—Specific provisions for all participating flocks.
(a)
Participating flocks, and all equipment used in connection with the flocks, shall be separated from non-participating flocks in a manner acceptable to the Official State Agency.
(b)
Poultry equipment, and poultry houses and the land in the immediate vicinity thereof, shall be kept in sanitary condition as recommended in § 147.21(c) of this subchapter.