law: The State Emblem of India (Prohibition of Improper Use) Act, 2005
  6. General powers of Central Government to regulate use of emblem.-
  (1) The Central Government may make such provision by rules as appears to it to be necessary, to regulate the use of the emblem in official seal that is used in offices of the Central Government and the State Governments and their organisations including diplomatic missions abroad, subject to such restrictions and conditions as may be prescribed.
  (2) Subject to the provisions of this Act, the Central Government shall have powers-
  (a) to notify the use of emblem on stationery, the method of printing or embossing it on demi-official stationery by the constitutional authorities, Ministers, Members of Parliament, Members of Legislative Assemblies, officers of the Central Government and the State Governments;
  (b) to specify the design of the official seal consisting of the emblem;
  (c) to restrict the display of emblem on vehicles of constitutional authorities, foreign dignitaries, Ministers of the Central Government and the State Governments;
  (d) to provide for guidelines for display of emblem on public buildings in India, the diplomatic missions and on the buildings occupied by India's consulatesa broad;
  (e) to specify conditions for the use of emblem for various other purposes including the use for educational purposes and the armed forces personnel;
  (f) to do all such things (including the specification of design of the emblem and its use in the manner whatsoever) as the Central Government considers necessary or expedient for the exercise of the foregoing powers.