Illinois Statutes Chapter 410. Public Health § 18/30. Cremation containers

(a) No crematory authority shall make or enforce any rules requiring that any human remains be placed in a casket before cremation or that human remains be cremated in a casket. No crematory authority shall refuse to accept human remains for cremation because the remains are not in a casket.

(b) No crematory authority shall accept human remains unless they are delivered to the crematory authority in a casket or an alternative container. If the human remains are delivered to the crematory authority in an alternative container, the alternative container shall comply with all aspects of the definition of “alternative container” set forth in Section 5.