(1) Where a commissioner -
(a) is nominated as a member of Seanad éireann,
(b) is elected as a member of either House of the Oireachtas or as a representative in the European Parliament,
(c) is regarded pursuant to Part XIII of the Second Schedule to the European Parliament Elections Act, 1997, as having been elected to the European Parliament to fill a vacancy, or
(d) becomes a member of a local authority,
he or she shall thereupon cease to be a commissioner.
(2) A person, who is for the time being entitled under the Standing Orders of either House of the Oireachtas to sit therein or who is a representative in the European Parliament, shall, while he or she is so entitled or is such a representative, be disqualified from becoming a commissioner.
(3) A person who is a member of a local authority shall be disqualified from becoming a commissioner.