Mass. Gen. Laws ch. 209D, § 3-303: Application of law of the commonwealth

Section 3–303. Application of law of the commonwealth. Except as otherwise provided in this chapter, a responding tribunal of the commonwealth shall:

(1) apply the procedural and substantive law, generally applicable to similar proceedings originating in the commonwealth and may exercise all powers and provide all remedies available in those proceedings; and

(2) determine the duty of support and the amount payable in accordance with the law and support guidelines of the commonwealth.