From a new FDA approval process to age restrictions, new federal regulations for e-cigarettes are now in effect.

New federal regulations for electronic cigarettes went into effect Monday, requiring greater scrutiny of the products and making it more difficult for minors to vape.

The Food and Drug Administration will have to approve all e-cigarette products that have been available since February 2007. That means nearly every e-cigarette product on the market must go through an application process to deem whether it can continue to be sold.

Manufacturers will be able to keep selling their products for up to two years while they submit a new production application, plus an additional year while the FDA reviews it.

Vape shops cannot give free samples to customers or sell to people younger than 18, under the new regulations. Merchants will be required to ask for identification from customers who appear to be under the age of 27. And vending machine sales of e-cigarettes are prohibited unless the machines are in adult-only facilities.

Also covered are premium, hand-rolled cigars, as well as hookah and pipe tobacco. Before the new regulations, there was no federal law prohibiting retailers from selling e-cigarettes, hookah tobacco or cigars to minors, though almost all states already prohibit such sales.

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