 An April 1972 law providing for "promotion of social aid services" aimed to remedy, through various beneficial measures (particularly in the field of national insurance and working conditions), the staff-shortage suffered by social establishments in their medico-social, educational and other work.A bill to harmonize re-education benefit and another bill relating to severely handicapped persons became law in May and September 1972 respectively.In 1972, winter payments for construction workers were introduced.