Assoc Prof Jamus Jerome Lim asked about the average response time for private ambulances, their training standards compared to SCDF personnel, and circumstances when they advise calling SCDF. Ong Ye Kung clarified that SCDF ambulances are for life-threatening emergencies, while private ambulances handle less urgent cases, and response times for private services are not tracked. Private ambulance services are regulated and must maintain certification, ensure staff qualifications, and conduct regular training, with protocols in place for triaging patients and referring emergencies to SCDF. In a life-threatening situation, the public is advised to call SCDF first.