SC CDL Pre Trip In-Cab/Exterior. * Enter & Exit the Vehicle with 3 Points Of Contact Always!!!* This video is York County specific. Parts identification and verbiage may differ at your local DMV and training school. However the SC DMV will be shorting the CDL Pre Trip portion of the test in the near future so this will still be a great tool to get familiar with any CDL Pre Trip inspection. Hopefully this helps and good luck! "You Got This!!!"