Paragraph 46 Placing of light signals prescribed in regulation 30(5) and in regulation 35 and signs and light signals shown in Schedule 11
A sign shown in diagram 6021 or 6031.1 may be displayed only over a traffic lane and a sign shown in diagram 6006, 6006.1, 6006.2, 6008, 6008.1, 6009, 6009.1, 6009.2, 6009.3, 6022 or 6032.1 may be displayed only at the side of the carriageway to which the indications given by the sign relate, or projecting over part of that carriageway, so as to communicate information to drivers in all traffic lanes.