(a) Each official establishment at which livestock are slaughtered or livestock carcasses or parts thereof or meat food products are processed for intrastate commerce shall have the premises, facilities, and equipment inspected and shall be operated in accordance with such sanitary practices as are required by rules prescribed by the Secretary of the Department of Health for the purpose of preventing the entry into and movement in commerce of carcasses, parts thereof, and meat food products which are unwholesome or adulterated.
(b) No livestock carcasses or parts thereof, or meat food product, shall be admitted into any official establishment unless they have been prepared only under inspection pursuant to this subchapter or the Federal Meat Inspection Act or their admission is permitted by rules prescribed by the secretary under this subchapter.
(c) The secretary shall refuse to render inspection to any establishment whose premises, facilities, or equipment, or the operation thereof, fail to meet the requirements of this section.