Rhode Island Senate leaders have introduced a bill that would create a system to tax and regulate recreational marijuana, with potentially dozens of private retail stores across the state.

The bill, introduced by Senate Health & Human Services Committee Chairman Josh Miller and Majority Leader Michael McCaffrey, would make it legal for adults ages 21 and older to possess up to one ounce of marijuana in Rhode Island. It would also allow people to grow the plant at home.

“Cannabis legalization is a monumental shift in public policy that effectively creates a new economy,” Miller, D-Cranston, said in a statement. “We want to ensure as many Rhode Islanders as possible have the opportunity to participate in this new economy.”