The South Dakota Senate has passed a measure that would ban the sale of electronic cigarettes to minors.
E-cigarettes are battery-powered devices that resemble traditional cigarettes.
They heat a liquid solution, creating vapor that users inhale to get nicotine without the smoke of regular cigarettes.
The bill could classify e-cigarettes that contain nicotine as tobacco products that cannot be sold to or used by anyone younger than 18.
Anyone selling e-cigarettes to minors could be charged with a misdemeanor punishable by up to 30 days in jail and a $500 fine.
The bill next goes to the House for further debate.