You Can Make a Difference ? Child Safety Seat Class (DCFS) This is a 4-hour course for DCFS employees to learn the proper use of child safety seats and Louisiana child safety seat/seat belt laws. The class includes classroom lecture and activities. Attendance will assist you with the proper selection, direction, harnessing, location and usage of child safety seats. While this is an intermediate course, simple knowledge can improve crash outcomes and assist you to save a child?s life in a motor vehicle crash. Classes are taught by nationally certified child passenger safety technicians.