CEN-CENELEC Business topics CEN and CENELEC’s standardization activities are divided into 14 different business sectors that cover a wide spectrum of areas, from Chemicals to Transport. Together with them, CEN and CENELEC have also identified the following priority horizontal topics which respond to specific societal needs and challenges: Accessibility Artificial Intelligence Ecodesign / resource efficiency eMobility Energy efficiency and Management Environment and sustainability Personal Protective Equipment Public Procurement Quantum Technologies Smart grid Smart house Smart metering