where any of those signs is erected, if those works necessitate the temporary removal of that marking, and shall not apply if any of those signs is erected only temporarily in connection with the execution of works on a road.
Any reference in this paragraph and in the next following paragraph to a traffic sign shown in diagram 601.I and to the number of that diagram in the said table shall be treated as a reference until the 31st December 1981 inclusive of that date to any sign which can be treated as if prescribed by the Regulations until that date if it is a sign of the type shown in the diagram numbered 601 in Schedule 1 to the Traffic Signs Regulations 1964.
11.—(1) The sign shown in diagram 501 shall not be used unless used either in combination with a plate of the type shown in diagram 502 and in conjunction with the sign shown in diagram 601.1 or in combination with a plate of the type shown in diagram 503 and in conjunction with the sign shown in diagram 602.
(2) The sign shown in diagram 545 shall not be used unless used in combination with any one or more of the following, that is to say, with a plate of the type shown in diagram 546, 547.1, 547.2 or the traffic sign (warning lights) prescribed by Regulation 37(2) of the Regulations.
(3) The traffic signs shown in the diagrams whose numbers appear in column 1 of the table set out at the end of this sub-paragraph shall not be used unless used in combination with a plate of the type shown in the diagrams whose numbers appear in column 2 of that table opposite to the number in column 1 to which they relate.
| Column 1 | Column 2 |
| Sign diagram number | Plate diagram number |
| 533 | either 534.1 or 534.2 or 535.1 |
| 562 | 563 |
| 617 | either 618 or 618.1 |
| 632 | either 570 or 645 |
12. A plate of the type shown in diagrams 502, 503, 511, 518, 519,525 to 527, 534.1, 534.2, 535.1, 537.1 to 537.3,546, 547.1,547.2, 553, 556.1, 556.2, 563, 564.1, 570 to 573, 575, 579, 602.1, 607, 608,618,618.1, 619.3, 619.4, 620, 620.1, 622.3, 625.2, 627,636.1,642.1,643 to 645, 656, 662, 802.1 to 805, 807 and 812.3 shall not be used unless used in combination with the signs which are specified beneath the diagram showing the plate.
13. A plate of the type shown in diagrams 637, 639, 640 or 641 may be placed on or near the side of a road only if there is placed in conjunction with that plate and on the same side of the road a road marking shown in diagrams 1016.1, 1017 or 1018, except that this paragraph shall not apply where any such plate is so placed for the purposes of a temporary statutory provision.
14. A plate of the type shown in diagram 638 or 640 may be placed on or near the side of a road only if there is placed in conjunction with that plate and on the
