A law of December 1993 amending the Basic Law on measures for physically and mentally disabled persons of 1970 aimed to promote the independence of disabled people and their participation in activities in any field such as culture, the economy, and community affairs. Amendments made to regulations under the Industrial Safety and Health Law of 1972 on 30 March 1994 included accidents involving the collapsing of cranes and breaking of wires that needed to be reported to the authorities. On 1 April 1994, a 40-hour workweek was introduced.