Mass. Gen. Laws ch. 66 § 3
The word "record" in this chapter shall mean any written or printed book or paper, or any photograph, microphotograph, map or plan. All written or printed public records shall be entered or recorded on paper made of linen rags and new cotton clippings, well sized with animal sizing and well finished, or on one hundred per cent bond paper sized with animal glue or gelatin and preference shall be given to paper of American manufacture marked in water line with the name of the manufacturer. All photographs, microphotographs, maps and plans which are public records shall be made of materials approved by the supervisor of records. Public records may be made by handwriting, or by typewriting, or in print, or by the photographic process, or by the microphotographic process, or by electronic means, or by any combination of the same. When the photographic or microphotographic process is used, the recording officer, in all instances where the photographic print or microphotographic film is illegible or indistinct, may make, in addition to said photographic or microphotographic record, a typewritten copy of the instrument, which copy shall be filed in a book kept for the purpose. In every such instance the recording officer shall cause cross references to be made between said photographic or microphotographic record and said typewritten record. If in the judgment of the recording officer an instrument offered for record is so illegible that a photographic or microphotographic record thereof would not be sufficiently legible, he may, in addition to the making of such record, retain the original in his custody, in which case a photographic or other attested copy thereof shall be given to the person offering the same for record, or to such person as he may designate.
Subject to the provisions of sections one and nine, a recording officer adopting a system which includes the photographic process or the microphotographic process shall thereafter cause all records made by either of said processes to be inspected at least once in every three years, correct any fading or otherwise faulty records and make report of such inspection and correction to the supervisor of records.
Mass. Gen. Laws ch. 66, § 3