Mass. Gen. Laws ch. 106, § 1-307: Prima Facie Evidence By Third–Party Documents

Section 1–307. A document in due form purporting to be a bill of lading, policy or certificate of insurance, official weigher's or inspector's certificate, consular invoice or any other document authorized or required by the contract to be issued by a third party is prima facie evidence of its own authenticity and genuineness and of the facts stated in the document by the third party.