Dead human bodies that are embalmed must be enclosed in a casket or alternative container designed for this purpose when transported by common carrier.
Dead human bodies that are not embalmed or in a decomposition state must be enclosed in a galvanized metal, sealed case (Ziegler or equivalent) or casket designed to prevent leakage of fluids and offensive odors when transported by common carrier.
02-331 C.M.R. ch. 12, § 5