law: Standards of Weights and Measures (Enforcement) Act, 1985
  26. Validity of
  
  weights or measures duly stamped.-
  1.  A
  
  weight or measure which is, or is deemed to be, duly verified and stamped under
  
  this Act shall be deemed to conform to the standards established by or under
  
  the Standards Act at every place within the State in which it is stamped unless
  
  it is found on inspection or verification that such weight or measure has
  
  ceased to conform to the standards established by or under the Standards Act.
  2.  No
  
  weight or measure which is, or is deemed to be, duly verified and stamped under
  
  this Act shall require to be re-stamped merely by reason of the fact that it is
  
  being used at any place within the State other than the place at which it was
  
  originally verified and stamped:
  Provided that 
  
  where a verified weight or measure, installed at one place, is dismantled and
  
  re-installed at a different place, such weight or measure shall not be put into
  
  use unless it has been duly re-verified and stamped, notwithstanding that
  
  periodical re-verification of such weight or measure has not become due.
  1.  
  2.  
  3.  Where
  
  a verified weight or measure has been repaired, whether by a licensed repairer
  
  or by the person owning and possessing the same, such weight or measure shall
  
  not be put into use unless it has been duly re-verified and stamped, notwithstanding
  
  that periodical re-verification of such weight or measure has not become due.