<Table> Food Standards Agency Welsh: Asiantaeth Safonau Bwyd <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Non-ministerial government department overview </Th> </Tr> <Tr> <Th> Formed </Th> <Td> 1 April 2000 (2000 - 04 - 01) </Td> </Tr> <Tr> <Th> Jurisdiction </Th> <Td> England, Wales & Northern Ireland </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Aviation House, 125 Kingsway, London, WC2B 6NH </Td> </Tr> <Tr> <Th> Annual budget </Th> <Td> £ 159.7 million (2009 - 2010) </Td> </Tr> <Tr> <Th> Non-ministerial government department executive </Th> <Td> <Ul> <Li> Heather Hancock, Chair </Li> </Ul> </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.food.gov.uk </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Non-ministerial government department overview </Th> </Tr> <Tr> <Th> Formed </Th> <Td> 1 April 2000 (2000 - 04 - 01) </Td> </Tr> <Tr> <Th> Jurisdiction </Th> <Td> England, Wales & Northern Ireland </Td> </Tr>

When did the food hygiene rating scheme start