Mass. Gen. Laws ch. 106, § 9-305
(a) Governing law: general rules. Except as otherwise provided in subsection (c), the following rules apply:
(b) Commodity intermediary's jurisdiction. The following rules determine a commodity intermediary's jurisdiction for purposes of this part:
(c) When perfection governed by law of jurisdiction where debtor located. The local law of the jurisdiction in which the debtor is located governs: