Mass. Gen. Laws ch. 175 § 47G
Any blanket or general policy of insurance described in subdivision (A), (C), or (D) of section one hundred and ten which is issued or subsequently renewed by agreement between the insurer and the policyholder, within or without the commonwealth, during the period within which this premium is effective, or any policy of accident or sickness insurance as described in section one hundred and eight which provides hospital expense and surgical expense insurance and which is delivered or issued for delivery or subsequently renewed by agreement between the insurer and the policyholder in the commonwealth, during the period within which this provision is effective, or any employers' health and welfare fund which provides hospital expense and surgical expense benefits and which is issued or renewed to any person or group of persons in the commonwealth, during the period within which this provision is effective, shall provide benefits for the expense of residents of the commonwealth covered under any such policy or plan for the expense of cytologic screening and mammographic examination. Said benefits shall be at least equal to the following minimum requirements: (a) in the case of benefits for cytologic screening, said benefits shall provide for an annual cytologic screening for women eighteen years of age and older; and (b), in the case of benefits for mammographic examination said benefits shall provide for a baseline mammogram for women between the ages of thirty-five and forty and for a mammogram on an annual basis for women forty years of age and older.
Mass. Gen. Laws ch. 175, § 47G