Functions of regulation of essential components of the body such as carbohydrates, proteins and fats, the conversion of one to another, and their breakdown into energy.
Services, systems and policies for publicly provided utilities, such as water, fuel, electricity, sanitation, public transportation and essential services.
Services and programmes supplying the population as a whole with essential energy (e.g. fuel and electricity), sanitation, water and other essential services (e.g. emergency repair services) for residential and commercial consumers, including those who provide these services.
Legislation, regulations and standards that govern the provision of utilities services, such as health and safety standards governing delivery and supply of water and fuel, sanitation practices in communities, and policies for other essential services and supply during shortages or natural disasters.