29 U.S.C. § 153 : US Code - Section 153: National Labor Relations Board

    (a) Creation, composition, appointment, and tenure; Chairman;
      removal of members
      The National Labor Relations Board (hereinafter called the
    "Board") created by this subchapter prior to its amendment by the
    Labor Management Relations Act, 1947 [29 U.S.C. 141 et seq.], is
    continued as an agency of the United States, except that the Board
    shall consist of five instead of three members, appointed by the
    President by and with the advice and consent of the Senate. Of the
    two additional members so provided for, one shall be appointed for
    a term of five years and the other for a term of two years. Their
    successors, and the successors of the other members, shall be
    appointed for terms of five years each, excepting that any
    individual chosen to fill a vacancy shall be appointed only for the
    unexpired term of the member whom he shall succeed. The President
    shall designate one member to serve as Chairman of the Board. Any
    member of the Board may be removed by the President, upon notice
    and hearing, for neglect of duty or malfeasance in office, but for
    no other cause.
    (b) Delegation of powers to members and regional directors; review
      and stay of actions of regional directors; quorum; seal
      The Board is authorized to delegate to any group of three or more
    members any or all of the powers which it may itself exercise. The
    Board is also authorized to delegate to its regional directors its
    powers under section 159 of this title to determine the unit
    appropriate for the purpose of collective bargaining, to
    investigate and provide for hearings, and determine whether a
    question of representation exists, and to direct an election or
    take a secret ballot under subsection (c) or (e) of section 159 of
    this title and certify the results thereof, except that upon the
    filing of a request therefor with the Board by any interested
    person, the Board may review any action of a regional director
    delegated to him under this paragraph, but such a review shall not,
    unless specifically ordered by the Board, operate as a stay of any
    action taken by the regional director. A vacancy in the Board shall
    not impair the right of the remaining members to exercise all of
    the powers of the Board, and three members of the Board shall, at
    all times, constitute a quorum of the Board, except that two
    members shall constitute a quorum of any group designated pursuant
    to the first sentence hereof. The Board shall have an official seal
    which shall be judicially noticed.
    (c) Annual reports to Congress and the President
      The Board shall at the close of each fiscal year make a report in
    writing to Congress and to the President summarizing significant
    case activities and operations for that fiscal year.
    (d) General Counsel; appointment and tenure; powers and duties;
      There shall be a General Counsel of the Board who shall be
    appointed by the President, by and with the advice and consent of
    the Senate, for a term of four years. The General Counsel of the
    Board shall exercise general supervision over all attorneys
    employed by the Board (other than administrative law judges and
    legal assistants to Board members) and over the officers and
    employees in the regional offices. He shall have final authority,
    on behalf of the Board, in respect of the investigation of charges
    and issuance of complaints under section 160 of this title, and in
    respect of the prosecution of such complaints before the Board, and
    shall have such other duties as the Board may prescribe or as may
    be provided by law. In case of a vacancy in the office of the
    General Counsel the President is authorized to designate the
    officer or employee who shall act as General Counsel during such
    vacancy, but no person or persons so designated shall so act (1)
    for more than forty days when the Congress is in session unless a
    nomination to fill such vacancy shall have been submitted to the
    Senate, or (2) after the adjournment sine die of the session of the
    Senate in which such nomination was submitted.