The IEC (International Electrotechnical Commission) is the world's leading organization that prepares and publishes globally relevant international standards for all electric and electronic devices and systems. It brings together 173 countries, representing 99,2% of the world population and 99,1% of world energy generation. Close to 20 000 experts cooperate on the global IEC platform and many more in each member country. They ensure that products work everywhere safely and efficiently with each other. The IEC also supports all forms of conformity assessment and administers four Conformity Assessment Systems that certify that components, equipment and systems used in homes, offices, healthcare facilities, public spaces, transportation, manufacturing, explosive environments and during energy generation conform to them. IEC work covers a vast range of technologies: power generation (including all renewable energy sources), transmission, distribution, smart grid and smart cities, batteries, home appliances, office and medical equipment, all public and private transportation, semiconductors, fibre optics, nanotechnology, multimedia, information technology, and more. It also addresses safety, EMC, performance and the environment.