A ban on the sale of vapes to under 18s takes effect from the 22nd of December.
Penalties for breaking the new rules could include fines of up to €4,000 or six months in prison.
Other measures are due to follow next year, including action on e-cigarette sales in vending machines, and advertising.
Health Minister Wicklow TD Stephen Donnelly says the legislation is important.
Endeavour Awards Recognise Those Making Bray Special
Business Leaders & Personalities Gather To Outline Temporary Alternative To Push Cliff Walk Reopening
Beyond The Pale Pre-Sale Tickets Go Live As Wicklow's 'Boutique' Festival Reveals Headliners
Relief For Coast Guard As Sod Turning Event Marks Some Movement Towards New Station In Greystones
Wicklow Wexford TD Says Mercosur Deal Would Signal ''Death-Knell'' For Irish Agriculture