9 C.F.R. § 201.304
(a) Prohibited bases.
(1) Except as provided in paragraph (a)(3) of this section, a regulated entity may not prejudice, disadvantage, inhibit market access, or otherwise take an adverse action against a covered producer with respect to livestock, meats, meat food products, livestock products in unmanufactured form, or live poultry based upon the following characteristics:
(2) Actions that prejudice, disadvantage, inhibit market access, or are otherwise adverse under paragraph (a)(1) of this section are as follows:
(3) The following actions by a regulated entity do not prejudice, disadvantage, inhibit market access, or constitute adverse action under paragraph (a)(1) of this section:
(b) Retaliation prohibited.
(2) The following activities by covered producers are protected under paragraph (b)(1) of this section unless otherwise prohibited by Federal, Tribal, or State law, including antitrust laws:
(3) The following actions are considered retaliation or an otherwise adverse action under paragraph (b)(1) of this section:
(c) Recordkeeping of compliance practices.