N.Y. Comp. Codes R. & Regs. tit. 10, § 58-2.20
(b) Ambulance transfusion services shall have a written agreement with all hospitals issuing blood components to the ambulance transfusion service for possible administration during transport to another hospital, except in cases when no ground or air, as needed, ambulance transfusion service with an agreement in place is available. The agreement shall be subject to the prior approval of the department. The agreement shall:
(d) Any order for a transfusion to be continued and/or initiated in an ambulance shall be documented on an order form approved by the department, and shall specify:
(e) Every transfusion administered in an ambulance must be documented on a transfusion record approved by the department. Such documentation must include:
(3) for each unit: