(a) This section does not apply to the disposition of a body by a school of medicine or dentistry.

(b) Except as otherwise provided in this section, a person may not cremate a body until it has been identified by:

(c) If a person who is authorized to arrange for final disposition of a body is not available to identify the body and authorize cremation, that person may delegate that authority to another person by sending to the delegate an electronic communication that contains the name, address, and relationship of the sender to the deceased and the name and address of the individual to whom authority is delegated. Written authorization shall follow by mail but does not take precedence over the electronic communication authorizing the identification and cremation.