Driver/Engineer Sims began his career as a firefighter with the Carrollton Fire Department in November of 1987 and was quickly promoted to Driver/Engineer. 

Some of Engineer Sims qualifications include Georgia State Certified Firefighter, National Professional Qualified HAZ/MAT Operations, Medical First Responder and training in emergency vehicle operations. 

He also has specialized training in emergency response to terrorism, arson detection for first responders, radiological waste isolation pilot program, pre-hospital management of traumatic brain injuries and CPR/First Aid training. 

Terry served in the United States Army from 1971 to 1973.