Requirements for Authorisation D Issue Date March 2019 65 2.2 Pit. A pit with a) an uninterrupted working length of at least m b) a width of at least mm and not more than mm over the working length measured across both pit walls (this maybe extended up to mm if used in combination with Class 7) ca depth of at least m and not more than mover the working length. Staging maybe used to meet this requirement d) adequate access for personnel which does not intrude on the working dimensions. Access steps may encroach on the required dimensions to an entrance/exit door or wall provided there is a minimum clearance width of not less than mm e) sealed to prevent the ingress of water f) jacking equipment as required fora lift. Rolled edges and vertical rails for jacking equipment must not exceed mm height g) captive bearing based turning plates, positively secured to the floor which permits the steered wheels to be turned freely from lock to lock (See Note) h) ifATL or OPTL: combined steering and wheel play detectors on DVSA’s list of acceptable equipment. No part of the installation should be within m of the pit working length drive on end. (See Note) Note: The location of turning plates and play detectors must be that the tester has adequate space to safely inspect all the items required when stood in the pit.