Final answer:
Property Custodians must submit their NIRs for non-drugs and biologics to the Medical Logistics Officer, who is responsible for medical property oversight and inventory management in a medical setting.
Step-by-step explanation:
Property Custodians in medical settings are responsible for maintaining control and oversight of property, which includes the submission of property inventory reports such as Non-Issue Request (NIR) forms. When it comes to the submission of NIRs for non-drugs and biologics, the proper protocol would typically dictate that these forms be submitted to the Medical Logistics Officer. The Medical Logistics Officer is generally in charge of managing medical supplies and equipment, which would encompass non-drugs and biologics inventory. While specifics may vary slightly by institution, this officer's role entails keeping accurate records and ensuring the appropriate distribution and accountability of medical property.