The impact of nanotechnology extends from its medical, ethical, mental, legal and environmental applications, to fields such as engineering, biology, chemistry, computing, materials science, and communications. Major advantages of nanotechnology include improved water purification systems, manufacturing strategies, physical enhancement, energy systems, nanomedicine, better food production strategies, nutrition and large-scale infrastructure auto-fabrication. Nanotechnology's reduced size might allow automation of tasks may were previously inaccessible due to physical restrictions, which successively might cut back labor, land, or maintenance requirements placed on humans. Potential risks of nanotechnology can broadly be grouped into four areas: Health issues (the effects of nanomaterials on human biology), Environmental issues (the effects of nanomaterials on the environment), Societal issues (the effects that the availability of nanotechnological devices will have on politics and human interaction), Speculative issues (the specific risks associated with the speculative vision of molecular nanotechnology). These could also be notably important if potential negative effects of nanoparticles are overlooked. The need of special government regulation for the Nanotechnology has been a controversial issue. Regulatory bodies like the United Environmental Protection Agency and the Health & consumer Protection directorate of the European Commission have started dealing with the potential risks of nanoparticles. The organic food sector has been the first to act with the regulated exclusion of engineered nanoparticles from certified organic produce, firstly in Australia and therefore the United Kingdom and more recently in Canada, as well as for all food certified to Demeter International standards.