(1) Every duty imposed by an Act of the Oireachtas or by an instrument made wholly or partly under any such Act shall, unless the contrary intention appears in such Act or instrument, be performed from time to time as occasion requires.
(2) Every duty imposed by an Act of the Oireachtas or by an instrument made wholly or partly under any such Act on the holder of an office as such shall, unless the contrary intention appears in such Act or instrument, be deemed to be imposed on and shall accordingly be performed by the holder for the time being of such office.