Three more retail locations were given the green light to sell recreational marijuana in Massachusetts on Tuesday as people lined up in Leicester and Northampton to be among the first customers at the first two legal pot shops on the East Coast.

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The Cannabis Control Commission approved retail licenses for Alternative Therapies Group (ATG).

ATG plans to open cannabis dispensaries in Salem, Amesbury, and Salisbury in the near future.

Cultivate and New England Treatment Access celebrated Tuesday’s grand opening by selling strains of the part of the marijuana plant that can be smoked, pre-rolled joints and edibles such as brownies and chocolate bars to thousands of people who braved the rain and snow.

Massachusetts voters approved recreational marijuana for adults in 2016.

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