Mass. Gen. Laws ch. 266, § 120C

Whenever a land surveyor registered under chapter one hundred and twelve deems it reasonably necessary to enter upon adjoining lands to make surveys of any description included under ''Practice of land surveying'', as defined in section eighty-one D of said chapter one hundred and twelve, for any private person, excluding any public authority, public utility or railroad, the land surveyor or his authorized agents or employees may, after reasonable notice, enter upon lands, waters and premises, not including buildings, in the commonwealth, within a reasonable distance from the property line of the land being surveyed, and such entry shall not be deemed a trespass. Nothing in this act shall relieve a land surveyor of liability for damage caused by entry to adjoining property, by himself or his agents or employees.