The proposals would also ban fantasy competitions based on college sports, prohibit promotions of paid fantasy sports on high school and college campuses and bar professional athletes, agents and others connected to pro sports from taking part in paid fantasy contests related to their sports.

The fantasy sports business, led by DraftKings and FanDuel, has drawn increasing regulatory scrutiny over the past few weeks with state regulatory officials debating whether the paid daily games are gambling.

"These are games that you carry around with you in your pocket and lose money at the touch of a button," said Healey, who served as co-captain of Harvard's basketball team and went on to play two years of professional basketball in Europe. "This is an important step to protect consumers here in Massachusetts."

The proposals must be submitted to the secretary of state and will be subject to a public comment period before taking effect.