(1) Every power conferred by an Act of the Oireachtas or by an instrument made wholly or partly under any such Act may, unless the contrary intention appears in such Act or instrument, be exercised from time to time as occasion requires.
(2) Every power conferred 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 conferred on and may accordingly be exercised by the holder for the time being of such office.
(3) Every power conferred by an Act of the Oireachtas to make any regulations, rules, or bye-laws shall, unless the contrary intention appears in such Act, be construed as including a power, exercisable in the like manner and subject to the like consent and conditions (if any), to revoke or amend any regulations, rules, or bye-laws made under such power and (where requisite) to make other regulations, rules, or bye-laws