Substitute the following for direction 32—
(1) A sign shown in diagram 878, 879, 880 or 880.1 may be placed only in an area or along a route where enforcement cameras are from time to time in use.
(2) The sign shown in diagram 880 may be placed only on or near a road on which—
(a) there is provided a system of carriageway lighting furnished by means of lamps placed not more than 183 metres apart in England and Wales or 185 metres apart in Scotland; and
(b) which is subject to a speed limit of 30 mph.
(3) The sign shown in diagram 880.1 may be placed only on or near a road on which—
(a) there is not a system of carriageway lighting furnished by means of lamps placed not more than 183 metres apart in England and Wales or 185 metres apart in Scotland; and
(b) a national speed limit is in force.
(4) No more than two signs of the type shown in diagram 880 or 880.1 may be placed on any approach to an enforcement camera.