law: Air (Prevention and Control of Pollution) Act, 1981
  12. Temporary Association of Persons with Board for Particular Purposes.
  (1)
  
  A Board may associate with itself in such manner, and for such purposes, as may
  
  be prescribed, any person whose assistance or advice it may desire to obtain in
  
  performing any of its functions under this Act.
  (2)
  
  A person associated with the Board under sub-section (1) for any purpose shall
  
  have right to take part in the discussions of the Board relevant to that
  
  purpose, but shall not have a light to vote at a meeting of the Board and shall
  
  not be a member of the Board for any other purpose.
  (3)
  
  A person associated with a Board under sub-section (1) shall be entitled to
  
  receive such fees and allowances as may be prescribed.