It's expected to be completed by the end of the year.
Ethics legislation is to be reviewed by the Department for Public Expenditure and Reform.
Cabinet approved the move today, with Minister Michael Mc Grath stating it will be the first step in delivering on a commitment made in the programme for government.
The review will respond to outstanding recommendations of the Moriarty and Mahon tribunals and more recent developments, such as the Hamilton report recommendations on preventing economic crime and corruption.
It's expected to be completed by the end of the year.

Talks Continue This Morning In Ambulance Staff Pay Dispute
Almost 1,800 Complaints Made To Ombudsman for Children Last Year
Man Dies Following Assault In Blanchardstown On Sunday
Value Of Unused Medication Each Year Estimated At Over €37.5M
Appeal Against Country's First Ever Supervised Injection Centre Rejected
Woman Caught On Laptop While Driving As National Day Of Action For Mobile Phone Distraction Takes Place
RTÉ Senior Management Due Before Oireachtas Committee Today
Man Dies After Road Collision In Carlow