If you are involved in a car accident, it is important to call 911 or the local police immediately to report the accident. The Ontario Police Department is the local law enforcement agency that would likely respond to a car accident in Ontario. They will collect information from the drivers involved, talk to witnesses, and file a report. This accident report can be used in insurance claims and injury lawsuits.
In case of injuries, there are several local hospitals in the Ontario area, where you can seek medical care, after a car accident. These include San Antonio Regional Hospital, Kaiser Permanente Ontario Medical Center, and Pomona Valley Hospital Medical Center. These hospitals have 24/7 emergency rooms that can treat car accident injuries.