Minister for Health Simon Harris will bring legislation to Cabinet today to ban the sale of e-cigarettes to those aged under 18.
Today's move will make sweeping changes to how e-cigarettes are sold in Ireland.
This legislation will also end the sale of tobacco products from self-service vending machines.
It will introduce a new licensing system for the sale of tobacco and nicotine-inhaling products.
All retailers will have to pay an annual fee for this licence.
There will also be a ban on the sale of tobacco at any events organised for children.
The new laws will be backed by enforcement measures, including fixed penalty notices and the publication of the names of offending retailers.
The Cabinet will also get an update on Brexit from the Taoiseach.
He will outline the latest state of play and the continuing preparations that are under way in case of a no-deal outcome.