Sec. 10a. WAITING PERIOD BETWEEN DEATH AND CREMATION. The body of a deceased person shall not be cremated within 48 hours after the time of death as indicated on the regular death certificate, unless the death certificate indicates death was caused by the pestilential diseases of Asiatic cholera, bubonic plague, typhus fever, or smallpox, or unless the time requirement is waived in writing by the county medical examiner or, in counties not having a county medical examiner, a justice of the peace. In a public health disaster, the commissioner of public health may designate other communicable diseases for which cremation within 48 hours of the time of death is authorized.