A Practice Note discussing antitrust issues raised by contracts that reference rivals (CRRs) and surveying the enforcement approaches of the Antitrust Division of the Department of Justice (DOJ) and Federal Trade Commission (FTC). It analyzes CRRs under US antitrust laws, including contracts containing most favored nations clauses (MFNs), exclusive dealing arrangements, customer loyalty programs, retail preference programs, meet-or-release provisions, and non-discrimination rules.