In Iowa, it is possible to request to celebrate funeral rites prior to the body being donated. In such cases, the Vigil and Funeral Liturgy (without Commendation) is celebrated and then the body released. When the body is returned, then the Rite of Committal with Final Commendation is celebrated. However, if the body is not available, the funeral rites may be celebrated in the absence of the body as above. Provisions
should be made to ensure that the remains are returned to the family after the scientific study is concluded so that they may be properly buried. The Rite of Committal (with Final Commendation, if not celebrated earlier) is celebrated at that time.