They specify the requirements of the lead firm (at the buying end of the chain) for supplier firms to ensure systemic chain competitiveness. They are industry specific or relevant across a range of sectors, such as IS09000 on quality and IS014000 on environmental management. They include food safety and energy efficiency, and those set by international bodies include the EU "farm-to-fork" food standards and vehicle emission standards. They include labour standards, organic standards and Fairtrade certification.