law: Standards of Weights and Measures Act, 1976 
  84. Continuance of
  
  certain weights and measures during  transitional period.-
  (1) Notwithstanding
  
  that this Act has come into force in respect of any area or class of goods or
  
  undertakings or class of weights and measures or users of weights and measures
  
  in the State of Sikkim, the Central Government may, by notification, permit the
  
  continuance of the use, after such commencement in respect of that area or
  
  class of goods or undertakings, or for classes of users of weights or measures,
  
  of such weights and measures. in addition to the standard weights or measures,
  
  and for such period, not exceeding five years, as may be specified in the
  
  notification.
  (2) Nothing in
  
  sub-section (1) shall be deemed to empower the Central Government to issue any
  
  notification in respect of any weight or measure which was not in use in the State
  
  of Sikkim immediately before the commencement of this Act.