law: General Clauses Act, 1897
  14. Powers conferred to be exercisable from time to time
  (1) Where, by any 12[Central Act] or Regulation made after the
  
  commencement of this Act, any power is conferred, 24[* * *], then 20[unless a
  
  different intention appears] that power may be exercised from time to time as
  
  occasion requires.
  (2) This section applies also to all 12[Central Acts] and
  
  Regulations made on or after the fourteenth day of January, 1887.