The date/time the injury occurred, or the date/time the symptoms or problem started The date/time the phone rings (911 call to public safety answering point or other designated entity) requesting EMS services. The date/time dispatch was notified by the 911 call taker (if a separate entity) The date the responding unit was notified by dispatch The date/time the unit responded; that is, the time the vehicle started moving The date/time the responding unit arrived on the scene; that is, the time the vehicle stopped moving The date/time the responding unit arrived at the patient's side The date/time the patient was transferred from this EMS agency to another EMS agency for care. The date/time the responding unit left the scene (started moving) The date/time the responding unit arrived with the patient at the destination or transfer point The date/time the unit back was back in service and available for response (finished with call, but not necessarily back in home location) The date/time if the unit's call was cancelled The date/time the responding unit was back in their service area. In agencys who utilized Agency Status Management, home location means the service area as assigned through the agency status management protocol.