Which factor is NOT a criteria for sharing a preparation and/or storage room?

The correct response indicates that having identical staff in both establishments is not a criterion for sharing a preparation and/or storage room. This is significant because the regulations surrounding the sharing of such facilities typically focus on operational and legal aspects rather than the specific composition of personnel.

Common ownership or a contractual agreement is crucial since these elements establish the legal right to share the facilities. Proximity within a specified radius addresses logistical concerns ensuring that shared facilities are conveniently accessible. The designation of a main office is relevant as it often helps in establishing accountability and oversight for the operations within the shared space.

In contrast, identical staff is not a requirement because different embalmers or funeral service establishments may operate independently while still being allowed to share facilities for practical reasons. This flexibility can be essential for operational efficiency and resource optimization without necessitating uniform staffing across locations.