GIPSA published the proposed rule in the Federal Register on June 22, 2010 (75 FR 35338). The Agency proposed adding several new sections to the regulations under the Packers and Stockyards Act of 1921, as amended and supplemented.
http://www.gipsa.usda.gov/GIPSA/newsReleases?area=newsroom&subject=landing&topic=nr&type=detail&item=nr_20100726_extension_6610.html