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.
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68 People Accessed Emergency Accommodation Across Wicklow In December
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High Court Grants Injunction To Prevent XL Bully Dogs From Being Put Down
On foot of an increase in dog attacks, a new law came into effect in October, making it illegal to import, breed, rehome, or resell XL Bully dogs.
Court Decision On Future Access To North Beach In Arklow Facing Further Delay
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Seanad Election Count Underway With Tiglin Founder In Race For Seat
There's a tight race for the Seanad in the Trinity College panel.
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