Call 911 and request a Columbia Police Department officer or Richland County Sheriff’s deputy to respond and file a crash report. Seek medical attention promptly, for injuries like concussions, whiplash, and internal trauma can worsen significantly if left untreated. Collect the other driver’s insurance information, license plate, and contact details, and gather witness names and numbers. Photograph everything you can at the scene. Notify your own insurance company that an accident occurred, but do not give a detailed recorded statement to any insurer without first consulting a Columbia car accident attorney.