In 1949, the federal research facility was established as the National Reactor Testing Station (NRTS). In 1975, the United States Atomic Energy Commission (AEC) was divided into the Energy Research and Development Administration (ERDA) and the Nuclear Regulatory Commission (NRC). The Idaho site was for a short time named ERDA and then subsequently renamed to the Idaho National Engineering Laboratory (INEL) in 1977 with the creation of the United States Department of Energy (DOE) under President Jimmy Carter. After two decades as INEL, the name was changed again to the Idaho National Engineering and Environmental Laboratory (INEEL) in 1997. Throughout its lifetime, there have been more than 50 one-of-a-kind nuclear reactors built by various organizations at the facility for testing; all but three are out of service.