The European Cooperation for Space Standardization (ECSS) is a co-operative arrangement comprised of nominated representatives from European space agencies and industries to streamline space standards to be directly implemented for space programs, projects, and the development of space products. These standards also discuss regulations for space systems development and series production and operation. ECSS documents address various aspects of space projects and applications including engineering, industrialization, maintenance, production, product assurance, project management, and space sustainability.