The U.S. Food and Drug Administration plans to require strict limits on the sale of most flavored e-cigarettes, including age verification controls for online sales, in an effort to curtail their use among children and teenagers.

FDA officials said yesterday the actions are expected to be announced as early as next week. The move is an attempt to curb what many are saying is an epidemic of underage vaping.

The new policy will apply to flavored cartridge-style vaping products like Juul that have become popular among youths, not the open tank-style systems sold in vape shops and mostly used by adults, officials said.

No retail outlets will be allowed to carry them unless it restricts minors from entering the store or creates an off-limits area.