"Federal nontax liability", a delinquent nontax liability certified by a federal official including, but not limited to, any interest, penalty, fine, fee or other nontax assessment imposed by or payable to the federal government that is finally determined to be due and owing.
"Federal official", a unit or official of the federal government charged with the collection of federal nontax liabilities payable to the federal government and with the authority to enter into the offset agreement.
"Offset agreement", the agreement between the commissioner, the state comptroller and the Secretary of the Treasury authorized by this section and section 19 of chapter 7A.
"State tax liability", a delinquent tax liability certified by the commissioner including, but not limited to, any tax, interest, penalty or other addition to a tax imposed by or payable to the commonwealth that is finally determined to be due and owing pursuant to chapter 62C.
Mass. Gen. Laws ch. 62D, § 15