 The craft were upgraded and handed over by the Republic of Singapore Navy (RSN), with the first four officially handed over on 7 May 1993 another four on 3 June 1994, and the last four on 22 January 1997 as part of the formation of the Police Coast Guard Coastal Patrol Squadron.The CPCs were built between 1979 and 1980, but continued service for over two decades while a proper replacement was being sourced.Five of the decommissioned vessels were transferred to the Indonesian Marine Police (POLAIR) on 9 February 2012.