Secretary of Commonwealth
UCC Division
One Ashburton Place, Room 1711
Boston, MA 02108-1512.
If the record is mailed or delivered, the envelope must clearly identify the type of record enclosed. If an envelope does not clearly identify the type of document enclosed, or is submitted to any other area of the office or to any district office, the record will not be considered received until received by the UCC Division.
950 CMR, § 140.04