law: Standards of Weights and Measures Act, 1976 
  1. Short title, extent
  
  and commencement. –
  (1) This Act may be
  
  called the Standards of Weights and Measures Act, 1976.
  (2) It extends to the
  
  whole of India.
  (3) It shall come into
  
  force on such date as the Central Government may, by notification, appoint, and
  
  different dates may be appointed for different, -
  (a) Provisions of this Act,
  (b) Areas,
  (c) Classes of undertakings,
  (d) Classes of goods,
  (e) Classes of weights and measures, or
  (f) Classes of users of weights and measures,
  And any reference in
  
  any such provision to the commencement of this Act shall be construed as a
  
  reference to the coming into force of that provision in such area or in respect
  
  of such classes of undertakings, goods, weights and measures or users of
  
  weights and measures in relation to which this Act has been brought into force:
  Provided that the provisions of
  
  this Act (including the standards established by or under this Act) shall come
  
  into force in the State of Sikkim on such date, not being later than five years
  
  from the passing of this Act as the Central Government may, by notification
  
  appoint, and different dates may be a appointed  for different provisions
  
  of this Act or for different areas or for different  classes of undertakings
  
  or for different classes of goods, or for different classes of weights and
  
  measures or for different classes of users of weights and measures.