The Republican Spelling System (in Indonesian: , when written in the current spelling system, or , when written in this spelling system) or Soewandi Spelling (in Indonesian: , when written in the current spelling system, or , when written in this spelling system) was the orthography used for Indonesian from 19 March 1947 until 17 August 1972. It was named after the Indonesian Minister of Learning at the time, .
This spelling replaced the earlier spelling system, the Van Ophuijsen Spelling System, which was in force from 1901. While it simplified the van Ophuijsen system somewhat (notably with the introduction of the letter u and the removal of diacritics), it retained other aspects of the old system, such as the Dutch-influenced digraphs ch, dj and tj.
The Soewandi spelling was exposed to continuous criticism from the literate community in the early fifties. The 'literate community' is not to be taken in its widest sense; those who engaged themselves in this question were particularly teachers, not unexpectedly. These shortcomings were of two kinds: partly the lack of consistent norms, particularly in the spelling of foreign and semi-naturalized words, and partly the lack of distinction between certain phonemes, which made the teaching of a correct pronunciation more difficult than it needed to be.
The Republican Spelling System was in force from 1947 until 1972, when it was replaced by the Enhanced Spelling System (, EYD) when Mashuri Saleh became Minister of Education and Culture. On 23 May 1972, Mashuri legalized the usage of the EYD, replacing the Republican system. This event was marked by changing the road sign at the front of his office from to (Cilacap street).
The differences between the Van Ophuijsen Spelling System and this system are: