b'P ROVING THE P RINCIPLEPrime Operating Site Contractors1 9 5 0 - 1 9 6 6 Phillips Petroleum Company1 9 6 6 - 1 9 72 Idaho Nuclear Corporation (Allied Chemical Corporation, Aerojet General Corporation, and Phillips Petroleum Company)1 9 72 - 1 9 7 6 Aerojet Nuclear Corporation1 9 7 6 - 1 9 9 4 EG&G Idaho1 9 9 4 - 1 9 9 9 Lockheed Martin Idaho Technologies Company1 9 9 9 - Bechtel BWXT Idaho, LLCArgonne National Laboratory-West1 9 4 9 - University of ChicagoIdaho Chemical Processing Plant(Idaho Nuclear Technology and Engineering Center)1 9 5 0 - 1 9 5 3 American Cyanamid Company1 9 5 3 - 1 9 6 6 Phillips Petroleum Company1 9 6 6 - 1 9 7 1 Idaho Nuclear Corporation1 9 7 1 2 - 1 9 7 9 Allied Chemical Corporation1 9 7 9 - 1 9 84 Exxon Nuclear Idaho Company1 9 84 - 1 9 9 4 Westinghouse Idaho Nuclear Company1 9 9 4 - 1 9 9 9 Lockheed Martin Idaho Technologies Company1 9 9 9 - Bechtel BWXT Idaho, LLCSpecific Manufacturing Capability1 9 8 3 - 1 9 8 6 Exxon Nuclear Idaho Company1 9 8 6 - 1 9 9 1 Rockwell INEL1 9 9 1 - 1 9 9 4 Babcock & Wilcox Idaho Inc.1 9 9 4 - 1 9 9 9 Lockheed Martin Idaho Technologies Company1 9 9 9 - Bechtel BWXT Idaho, LLCNaval Reactors Facility1 9 5 0 - 1 9 9 9 Westinghouse Electric Corporation1 9 9 9 - Bechtel Bettis, Inc.25 8'