<Table> Health and Safety at Work etc . Act 1974 <Tr> <Td_colspan="2"> Parliament of the United Kingdom </Td> </Tr> <Tr> <Th> Long title </Th> <Td> </Td> </Tr> <Tr> <Th> Citation </Th> <Td> 1974 c 37 </Td> </Tr> <Tr> <Th> Introduced by </Th> <Td> Secretary of State for Employment Michael Foot 22 March 1974 </Td> </Tr> <Tr> <Th> Territorial extent </Th> <Td> England and Wales, Scotland, Northern Ireland, offshore </Td> </Tr> <Tr> <Th_colspan="2"> Dates </Th> </Tr> <Tr> <Th> Royal assent </Th> <Td> 31 July 1974 </Td> </Tr> <Tr> <Th> Commencement </Th> <Td> from 1 October 1974 </Td> </Tr> <Tr> <Th> Repealed </Th> <Td>--</Td> </Tr> <Tr> <Th_colspan="2"> Other legislation </Th> </Tr> <Tr> <Th> Amended by </Th> <Td>--</Td> </Tr> <Tr> <Th> Repealed by </Th> <Td>--</Td> </Tr> <Tr> <Th> Relates to </Th> <Td> Environmental Protection Act 1990 Railways Act 2005 </Td> </Tr> <Tr> <Th_colspan="2"> Status: Current legislation </Th> </Tr> <Tr> <Th_colspan="2"> Text of statute as originally enacted </Th> </Tr> <Tr> <Th_colspan="2"> Text of the Health and Safety at Work etc . Act 1974 as in force today (including any amendments) within the United Kingdom, from legislation.gov.uk </Th> </Tr> </Table> <Tr> <Td_colspan="2"> Parliament of the United Kingdom </Td> </Tr>

When did the health and safety at work act start