15 June – The SAF Act comes into effect, allowing for effective management of the Singapore Armed Forces. The Act merges the air, sea and land vocations and establishes the Armed Forces Council.[7]
13 October – Heavy fog, an environmental phenomenon that had built up since the beginning of the month, causes gridlock and other problems throughout Singapore.[14]
24 October – Disincentives are announced to nudge families into having only two children, taking effect on 1 August 1973. Among them are progressive reduction of income tax relief to the first three children; increase in childbirth fees depending on births; reduction of paid maternity leave from three to two confinements; and lowering priority of HDB flats allocations for large families (more than two children).[15]
November
21 November – A fire engulfs the Robinson's Department Store, causing 9 deaths. In addition, the impact of the fire damaged the roof of the Overseas Union Bank building and forced the Stock Exchange to stop trading for the day. As a result, this makes the fire one of the worst in Singapore's history.[16][17]