Labels on products attempt to create trust with consumers and provide a competitive advantage for marketing products. Company names on labels have long been a way to differentiate consumer goods ranging from automobiles to food. More recent trends have been to provide labels with information on where or how products were produced. In the case of food products, labels indicating the traceability of methods used to manage pests are becoming more common and regulated. Over the last 20 years there have been efforts to label food products as IPM-grown, pesticide-free, eco-labels or produced in some way that suggests to the consumer that the food was produced in a manner that optimizes safety for humans and the environment. Recently the USDA has formalized the standards and provided a label for organically grown products, but this has been controversial and many organic producers have chosen not to follow such rules or to use the label. Other international, national or regional programs are also being developed to identify how foods were produced, including efforts to label products as not containing genetically modified organisms. Some of these efforts are being generated by large distributors and processors of food products, government agencies and universities, and by farmer organizations. Some are developed in order to open (or close) international trade markets, others attempt to obtain price premiums. Development of label standards and methods of ensuring continuous supplies of products adhering to such standards are challenging.