law: Indian Boilers Act, 1923 
  10. Use of boiler pending grant of certificate 
  (1) Notwithstanding anything hereinbefore contained, when the
  
  period pending grant of a certificate relating to a boiler has expired, the
  
  owner shall, provider that he has applied before the expiry of that period for
  
  a renewal of the certificate, be entitled to use the boiler at the maximum
  
  pressure entered; in the former certificate pending the issue of orders on the
  
  application.
  (2) Nothing in sub-section (1) shall be deemed to authorize the
  
  use of a boiler in any of the cases referred to in clauses (b), (c), (d), (e)
  
  and (f) of sub-section. (1), of section 8 occurring after the expiry of the
  
  period of the certificate.