Mr Obama affixed his signature to the measure with a nod to his own struggles to kick the habit, and lamented the fact that 1,000 people under the age of 18 become regular smokers every day, courting a range of grave health risks.
The law grants the Food and Drug Administration (FDA), a regulatory body, the authority to ban flavourings added to some tobacco products and require tough new warning labels, in a bid to lessen tobacco use among young people.
Under the new law, the FDA will create a new Center for Tobacco Products to oversee the science-based regulation of tobacco products in the United States.