sterilised after their second child. The government also added a gradually increasing array of incentives and disincentives between 1968 and 1973, penalising parents for having more than two children, raising the per-child costs of each additional child: In 1968 with the Employment Bill, female employees would not receive maternity leave for their fourth child or any subsequent children; In April 1969, the accouchement fee of $10 charged at Government Maternity Hospitals was raised to $50 after the 3rd baby; In 1972, these measures were introduced: The incentives: Waiver of delivery charges in Government maternity hospitals for women who undergo sterilisation after delivery. For ward C-class patients who have undergone sterilisation, the ward charges are remitted. Government delivery charges are also waived if the husband undergoes sterilisation within a month after the wife delivered child. Patients undergoing sterilisation are granted medical leave on generous terms. The disincentives: Delivery charges in Government Hospitals increase with each additional child. No paid maternity leave is given for delivery of the fourth child and subsequent children. No priority is given to large families in the allocation of Housing and Development Board flats. Updates to these earlier measures were announced and debated in Singapore Parliament on 24 October 1972 and came into effect on 1 August 1973: Reduction of income tax relief to cover only the first three children; Reduction of paid maternity leave from three to two confinements; Lowering the priority for allocation of Housing and Development Board (HDB) flats for bigger families. Two or less have highest priority, four or more would have little priority; Progressive increment of childbirth fees charged in government hospitals based on birth order. These fees are waived if the man or woman underwent sterilisation; Third or fourth children were given lower priorities in education; Top priority in top-tier primary schools would be given only to children whose parents had been sterilised before the age of forty. The Singapore Family Planning and Population Board created a large array of public education material for the Stop-at-Two campaign, in one of the early examples of the public social engineering campaigns the government would continue to implement (Speak Mandarin, Speak Good English, National Courtesy, Keep Singapore Clean and Toilet Flushing Campaigns) that would lead to its reputation as "paternalistic" and "interventionist" in social affairs. The "Stop at Two" media campaign from 1970 to 1976 was led by Basskaran Nair, press section head of