Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 90, § 3E

The fee paid by the plaintiff under section three C or three D to the registrar at the time of the service shall be taxed in his costs if he prevails in the action or proceeding. The registrar shall keep a record of all processes served upon him under said sections three C and three D, which shall show the day and hour of service.