The essence of open range was the free grazing of cattle on millions of unfenced acres of public land. It was possible to become wealthy raising cattle without owning any acreage. Although most ranchers owned a base operation, some owned millions of acres. America's open range started with the Civil War [1861-1865].
I think the correct answer would be GRAS. It means " generally recognized as safe. It is a label given to food products that were able to pass certain food amendments. Hope this answers the question. Have a nice day. Feel free to ask more.