Mass. Gen. Laws ch. 140D, § 15 – Advertisements; other than open-end-credit plans; contents

(a) Except as provided in subsection (b), this section applies to any advertisement to aid, promote, or assist directly or indirectly any consumer credit sale, loan, or other extension of credit subject to the provisions of this chapter, other than an open-end-credit plan.
(b) The provisions of this section shall not apply to advertisements of residential real estate except to the extent that the commissioner may by regulation require.
(c) If any advertisement to which this section applies states the rate of finance charge, the advertisement shall state the rate of that charge expressed as an annual percentage rate.
(d) If any advertisement to which this section applies states the amount of the down payment, if any, the amount of any installment payment, the dollar amount of any finance charge, or the number of installments or the period of repayment, then the advertisement shall state all of the following items:
1. (1) The down payment, if any;
2. (2) The terms of repayment; and
3. (3) The rate of the finance charge expressed as an annual percentage rate.