The impact of injuries on the Jamaican health care system is a growing problem. Based on the successful implementation of a Violence-Related Injury Surveillance System (VRISS) in the Accident and Emergency (A&E) department of the Kingston Public Hospital (KPH), Ministry of Health (MOH) officials decided to expand the system to the Jamaica Injury Surveillance System (JISS), allowing for the surveillance of both intentional and unintentional injuries. A working group designed the expanded injury surveillance system based on the International Classification of External Causes of Injury. The expanded system allowed for the collection of data on all injuries seen in the A&E departments by adding four injury projects to the computerized A&E registration process. These were (1) unintentional injury, (2) violence-related injury, (3) suicide attempt (also known as intentional self-harm) and (4) motor vehicle-related injuries. The expanded JISS was implemented at the KPH and four additional hospitals across the island. The geographic distribution of these hospitals provided a reflection of rural and urban, highland and coastal communities and their distinctive injury profiles. Data collected at registration were printed on trauma sheets and reviewed by medical staff before being incorporated into the patient's record. Monthly reports detailing demographics and summary statistics were generated and made available at the local and national level. By monitoring the national injury profile, the JISS provides data to support needed policy changes to minimize the impact of injuries on the health services and on the health of the population.