7 C.F.R. § 1220.611
Public notice means a notice published in the FEDERAL REGISTER, not later than 60 days prior to the last day of the Request for Referendum period, that provides information regarding the Request for Referendum period. Such notification shall include, but not be limited to explanation of producers' rights, procedures to request a referendum, the purpose, dates of the Request for Referendum period, location for conducting the Request for Referendum, and eligibility requirements. Additionally, the United Soybean Board is required to provide producers, in writing, this same information during the same time period. Other pertinent information shall also be provided, without advertising expense, through press releases by State and county FSA offices and other appropriate Government offices, by means of newspapers, electronic media, county newsletters, and the like.
7 C.F.R. §1220.611