Before revision: The Secretary to the Treasury was the traditional head of the Civil Service during the time of the old Ceylon Civil Service, but in years after the establishment of the SLAS the Presidents Secretary is the de facto head of the SLAS .
After revision: The Secretary to the Treasury was the traditional head of the Civil Service during the time of the old Ceylon Civil Service, but in years after the establishment of the SLAS the President'sif he/she is a former SLAS officer Secretary is the de facto head of the SLAS .