Mass. Gen. Laws ch. 106, § 9-513
(a) Consumer goods. A secured party shall cause the secured party of record for a financing statement to file a termination statement for the financing statement if the financing statement covers consumer goods and:
(b) Time for compliance with subsection (a). To comply with subsection (a), a secured party shall cause the secured party of record to file the termination statement:
(c) Other collateral. In cases not governed by subsection (a), within 20 days after a secured party receives an authenticated demand from a debtor, the secured party shall cause the secured party of record for a financing statement to send to the debtor a termination statement for the financing statement or file the termination statement in the filing office if: