Society is continually faced with the decision of the trade-off between environmental risks and economic costs. The use of certain antibiotics and, DES in livestock and poultry production has produced unacceptable environmental risks. The objective of this study was to determine the economic impact from banning the use of these two pieces of technology in beef, pork, broiler and turkey production. The economic impact was derived through use of an econometric simulation model of the livestock and poultry industries.