In response to a need to standardize the use of such terms as and the U.S. Congress passed the Organic Foods Production Act of
1990, which established the U.S. National Organic Standards Board (NOSB). In 1995, the NOSB defined as "an production management system that promotes and enhances , cycles and soil biological activity. It is based on minimal use of off-farm inputs and on management practices that restore, maintain and enhance ecological harmony." Organic production uses "materials and practices that enhance the ecological balance of natural systems and that integrate the parts of the farming system into an ecological whole," though such practices "cannot ensure that products are completely free of residues" of pesticides, herbicides, and other additives or contaminants. However, "methods are used to minimize pollution from air, soil, and water. Organic food handlers, processors, and retailers adhere to standards that maintain the integrity of organic agricultural products. The primary goal of organic agriculture is to optimize the health and productivity of interdependent communities of soil life, plants, animals and people" (NOSB).