The Agricultural Marketing Service has proposed a change to its regulations regarding the implementation of the Packers and Stockyards Act. The proposed rule would establish criteria, rather than using a case-by-case approach, for determining whether an undue or unreasonable preference or advantage has occurred in violation of the Act. The promulgation of such regulations is required by the 2008 Farm Bill. The agency is accepting comments on this proposal until March 13, 2020.