N.Y. Veh. & Traf. Law § 114-B
The operation, or parking, of an authorized emergency vehicle, when such vehicle is engaged in transporting a sick or injured person, transporting prisoners, delivering blood or blood products in a situation involving an imminent health risk, transporting human organs and/or medical personnel for the purpose of organ recovery or transplantation in a situation involving an imminent health risk where undue delay would jeopardize such recovery or transplantation, pursuing an actual or suspected violator of the law, or responding to, or working or assisting at the scene of an accident, disaster, police call, alarm of fire, actual or potential release of hazardous materials or other emergency. Emergency operation shall not include returning from such service.
N.Y. Veh. and Traf. Law § 114-B