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.

Sharp Rise In M9 Collisions With Garda Call-Outs Up Year-On-Year
Councillor Seeks Clarity On How Often Nightclubs and Late Bars In Naas Are Inspected For Fire Risks
New Figures From CSO Reveal How Much International Protection Applicants Earn Compared To Average Worker In Ireland
Unpaid Eight-Month Work And Training Placement For Adults With Disabilities Branded "Extremely Unfair"
Department Of Education Defends Kildare SNA Cuts Amid Claims Of Reduced Need At Some Schools
Naas Nurses Threaten Escalation As Staffing Row Deepens
Driving Tests Face Disruption As RSA Testers To Strike Next Week
Jury Delivers Not Guilty By Reason Of Insanity Verdict In Ballyfin Demesne Strangling Case