On January 1, 2014 a new type of MassHealth coverage became available called MassHealth CarePlus for adults age 21 to 65 with income at or below 133% of the poverty level. It is part of the expansion of the Medicaid program under federal health reform. About 300,000 people were enrolled in CarePlus on its first day including about 135,000 people who had been insured through other MassHealth programs, primarily Basic and Essential.
Regulations describing CarePlus are at 130 CMR 505.008
A fact sheet describing the transition to CarePlus is on the Office of Medicaid website below.