Mass. Gen. Laws ch. 112, § 60F: Seal of registered architect

Section 60F. Every registered architect shall have a seal of a design authorized by the board. All plans and specifications and reports prepared by a registered architect, or under his supervision shall be stamped with the impression of such seal. A registered architect shall impress his seal on any plans or specifications only if his certificate of registration is in full force and if he was the author of such plans and specifications or in responsible charge of their preparation.