The Treasurer-Collector and the Board of Selectmen are authorized
and directed to pay a subsidiary or additional rate of premium, or
cost, for employees (past and future) and their dependents, retired
from the services of the Town because of an on-the-job injury, which
shall be equivalent to the rate of premium or cost currently paid
by the Town for active employees, and their dependents, for equal
health and group life insurance, with the remaining premium or cost
to be paid by the retired employee.