Mass. Gen. Laws ch. 111C, § 12
(a) The commissioner shall appoint a state medical director, who shall serve at the pleasure of the commissioner, and who shall be a qualified emergency physician. The department may establish additional qualifications for the position of state medical director by regulation. The duties and responsibilities of the state medical director shall be to:
(b) Each regional EMS council shall appoint a regional medical director, who shall be a qualified emergency physician. The department may establish additional qualifications for the position of regional medical director by regulation. The duties and responsibilities of each regional medical director shall be, under the general direction and oversight of the state medical director, to: