Regulation 9 Removal of stationary vehicles
No person, other than a constable or traffic officer, shall—
(a)
carry out, or attempt to carry out, any repair, adjustment or refuelling of a vehicle which is at rest by reason of breakdown in any part of the crossing, other than a designated parking area, or on the approach roads except with permission expressly given by a constable or traffic officer; or
(b)
move, or attempt to move, any such vehicle from the position in which it is at rest.