Organic agriculture is a system of production that promotes management practices that restore, maintain and enhance ecological harmony while minimizing the use of off-farm inputs. Under organic production, the use of conventional non-organic pesticides, insecticides and herbicides is greatly restricted. If livestock are involved, they must be reared without the use of antibiotics and without the use of growth hormones, and generally fed a healthy diet. Government regulations and third-party inspectors are looked to for assurance. A "certified organic" label is usually the only way for consumers to know that a processed product is "organic".