Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 46, § 2C

If an adopted person is deceased, his child, if 18 years or older, or such child's parent or guardian if such child is less than 18 years of age, shall be eligible to apply for the information his adopted parent would have access to under section 2B and to participate in the adoption contact information registry pursuant to section 31.