Dublin City Council is to introduce new measures aimed at cutting the amount of oil, fat and grease that is disposed into the city's sewage system.
The initiative, one of the first in Europe, aims to stop blockages which cause pollution and cost up to €500,000 a year to clear.
It is hoped the waste will be collected and recycled by private operators and used as bio-fuel for trucks.
It is likely that 4,000 restaurants, hotels and food outlets in Dublin will be affected by the initiative.
Each year, more than 7 million litres of fat, oil and grease are poured down the capital's drains.
This waste is causing major blockages in the sewage system leading to flooding and pollution and the growing number of food outlets in the city contribute most to the problem.
The new restrictions will be introduced on a phased basis by the end of the year.
