The IEC (International Electrotechnical Commission) brings together 173 countries and 20 000 experts who cooperate on the global IEC platform to ensure that products work everywhere safely with each other. The IEC is the world's leading organization that prepares and publishes globally relevant international standards for the whole energy chain, including all electrical, electronic and related technologies, devices and systems. The IEC 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 energy generation are safe, energy efficient and perform to the required standards. IEC work covers a vast range of technologies: power generation (including all renewable energy sources), transmission, distribution, smart grid & smart cities, batteries, home appliances, office and medical equipment, all public and private transportation, semiconductors, fibre optics, nanotechnology, multimedia, information technology, and more.