What document must accompany remains transported out of Missouri?

The requirement for a document that must accompany remains transported out of Missouri is the transit permit. The transit permit is essential as it serves as legal documentation that the remains have been properly handled and are authorized for transport. This document is typically issued by the local health department or appropriate authority and ensures that all regulations concerning the disposition of human remains are followed, particularly when moving them across state lines.

While the burial permit and death certificate are important documents related to the handling and disposition of deceased individuals, they do not specifically serve the purpose of facilitating the interstate transport of remains. Embalming certificates are related to the preservation process but are not required for transportation purposes outside of Missouri. The transit permit is specifically designed to address the legalities and authorizations needed for transporting human remains out of the state, making it the correct answer in this context.