2. Where hinges are used, the hinges shall be fitted at the front edge of the door. However, they may be fitted at the top or rear edge if either— (a)a device is fitted which automatically closes the door at least to the intermediate latched position if it is unlatched when the vehicle is moving in the forward direction; or (b)a safety-bolt is fitted to prevent such unlatching and an audible warning device is provided which activates an audible warning if the vehicle is driven without the bolt in place. |