North Dakota's Retirement and Investment Office (RIO) was established in 1989 to coordinate the activities of the State Investment Board (SIB) and the Teacher's Fund for Retirement (TFFR) as stated in Section 54-52.5-01 of the North Dakota Century Code. While the SIB is the oversight board for RIO, the TFFR Board is responsible for the administration of the TFFR benefits program.