for managers, Legislators, Legislative staff and certain Executive Office and MBTA staff only. This Plan is only available to employees not covered by collective bargaining who do not have another Dental and/or Vision Plan. Employees of authorities, higher education, municipalities, and the Judicial Trial Court System are not eligible for this Plan. During annual enrollment, eligible employees may enroll in the plan or change their dental plan type.
Keep in mind, that once you choose a plan you may not change plans until the next annual enrollment, even if your dentist leaves the plan during the year.
This information provided by the Group Insurance Commission.