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.

13 New Gardaí For Kildare - But No Increase For Part-Time Maynooth Station
Kildare’s Rain Warning Brought Forward To 9am As Remnants Of Storm Claudia Approach Ireland
Christmas Gift Caution As E-Scooters Leading Cause Of Child Brain Injuries
€540k Worth Of Ketamine Seized In Major Kildare Raid
Former GAA Referee Thomas Howard From Old Kilcullen Jailed For Indecently Assaulting His Niece
Mother Of Late Harvey Morrison Focused On Change For Children With Spina Bifida And Scoliosis
Taoiseach Seeks Details After Kfm Reported How A Newbridge Childminder May Face Commercial Rates
New Housing Plan Targets 300,000 Homes - But Lacks Annual Delivery Goals