Workplace safety and environmental sustainability can be promoted by agreed standards, certification and labelling. This publication contains 22 case studies on the impact of standards and certification programmes for cash crops in developing countries, including organic agriculture, fair-trade labelling, "Social Accountability 8000", the Rainforest Alliance Sustainable Agriculture Programme, the Ethical Trading Initiative, ISO-14001 and EurepGap. It examines the origins, scope and certification systems of these initiatives, as well as stakeholder involvement, the standard-setting process, verification methods, the relationship with the World Trade Organization agreements and the potential role of governments.