(1) The Board may, with the previous approval of the Central Government, by notification in the Official Gazette, make regulations not inconsistent with this Act and the rules, for enabling it to discharge its functions under this Act.
     (2) Without prejudice to the generality of the foregoing power, such regulations may provide for all or any of the following matters, namely:--
         (a) the manner in which and the purposes for which the Board may associate with itself any persons, under sub-section (5) of section 4;
         (b) the powers which may be exercised and the duties which may be discharged by the Chief Engineer of the Board, under sub-section (2) (b) of section 7;
         (c) the terms and conditions of service of the officers (other than the Chief Engineer of the Board, Financial Adviser and Secretary to the Board) and other employees of the Board, under sub-section (2) of section 8.