65 FR 36416
Chicago Board of Trade: Proposed Amendments to the Chicago Board of Trade: Corn, Corn Yield Insurance (Six Contracts), Oats, Rough Rice, Soybeans, Soybean Meal, Soybean Oil, Wheat, Kilo Gold, 100 Ounce Gold, 1000 Ounce Silver, and 5000 Ounce Silver Futures Contracts, Increasing the Contracts, Maximum Daily Price Fluctuation Limits
U.S. government work (Federal Register / govinfo). Primary PDFs open on govinfo; RegStak hosts the catalog only.