22 U.S.C. § 2578 : US Code - Section 2578: Negotiating records

    (a) Preparation of records
      The Secretary of State shall establish and maintain records for
    each arms control, nonproliferation, and disarmament agreement to
    which the United States is a party and which was under negotiation
    or in force on or after January 1, 1990, which shall include
    classified and unclassified materials such as instructions and
    guidance, position papers, reporting cables and memoranda of
    conversation, working papers, draft texts of the agreement,
    diplomatic notes, notes verbal, and other internal and external
    (b) Negotiating and implementation records
      In particular, the Secretary of State shall establish and
    maintain a negotiating and implementation record for each such
    agreement, which shall be comprehensive and detailed, and shall
    document all communications between the parties with respect to
    such agreement. Such records shall be maintained both in hard copy
    and magnetic media.