Slovak Socialist Republic
He was appointed prime minister of the Slovak Socialist Republic on 4 May 1969, replacing Stefan Sádovský in the post. He also served as deputy prime minister of Czechoslovakia from 1969 to 1988. He resigned from premiership on 12 October 1988 and was replaced by Ivan Knotek in the post. Colotka also resigned from the Czechoslovak Communist Party's presidium in October 1988.