ISO 9000 and ISO 14000 are international standards for quality management and environmental management systems, respectively. ISO 9000 provides guidance for establishing quality assurance systems to ensure products and services meet customer requirements and quality consistently improves. ISO 14000 helps organizations develop environmental management systems to work within a healthy environment and meet climate change challenges. The key differences are that ISO 9000 focuses on quality management while ISO 14000 focuses on environmental management systems. Examples of companies certified with each standard are provided.