FOURTH SCHEDULE
Rules 17(2), 18(2) and 64B(4)
DIAGRAM NO. 1
DIAGRAM NO. 2
DIAGRAM NO. 3
DIAGRAM NO. 4
DIAGRAM NO. 5
DIAGRAM NO. 6
DIAGRAM NO. 7
DIAGRAM NO. 8
DIAGRAM NO. 9
DIAGRAM NO. 10
DIAGRAM NO. 11
DIAGRAM NO. 12
DIAGRAM NO. 13
DIAGRAM NO. 14
DIAGRAM NO. 15
DIAGRAM NO. 16
DIAGRAM NO. 17
DIAGRAM NO. 18
DIAGRAM NO. 19
DIAGRAM NO. 20
DIAGRAM NO. 21
DIAGRAM NO. 22
PROVISIONS TO BE COMPLIED WITH
1.  The identification mark comprising the index mark and registration number suffixed with a letter of the alphabet for the vehicle shall be arranged in conformity with the arrangement of letters and figures on one or other of the diagrams.
2.—(1)  Unless the identification mark is so constructed that it can be illuminated by means of the transparency or translucency of the letters and figures, or is exhibited on a plate which is constructed of reflex reflecting material in accordance with paragraph 3, it shall be formed of white or silver or light grey letters and figures upon a black surface and every letter or figure shall be indelibly inscribed upon or so attached to such surface that it cannot easily be detached therefrom.
(2)  If the letters and figures are exhibited on a flat plate, the plate may be constructed of cast or pressed metal having raised letters and figures.
(3)  If the identification mark is so constructed and used that it is illuminated by transparency or translucency, the letters and figures shall, when so illuminated during the hours of darkness, appear white.
(4)  When not so illuminated, the letters and figures shall appear white against a black background.
3.  An identification mark may be exhibited on a plate which is constructed of reflex reflecting material and if so exhibited —
(a)the identification mark if displayed on the front of the vehicle shall be formed of black letters and figures against a white background constructed of reflex reflecting material, but no reflecting material shall be applied to any part of the black letters or figures;
(b)the identification mark if displayed on the back of the vehicle or any trailer attached to the vehicle shall be formed of black letters and figures against a yellow background constructed of reflex reflecting material, but no reflecting material shall be applied to any part of the black letters or figures; and
(c)every plate on which the identification mark is exhibited shall be legibly and permanently marked with the specification number of the British Standard for reflex reflecting number plates, namely, B.S. AU. 145: 1967.
4.  All letters and figures shall be 70 mm high, every part of every letter and figure shall be 10 mm broad and the total width of the space taken by every letter or figure, except in the case of the figure one, shall be 50 mm.
5.  The space between adjoining letters and between adjoining figures shall be 10 mm and there shall be a margin between the nearest part of any letter or figure and the top or bottom of the black surface upon which the identification mark is inscribed of at least 10 mm and between the nearest part of any letter or figure and the sides of the black surface of at least 20 mm.
6.—(1)  Where the identification mark is arranged in accordance with Diagram No. 1, the space between the upper and lower line shall be 15 mm and the space between the figures and the last letter shall be 20 mm.
(2)  Where the identification mark is arranged in accordance with Diagram No. 2, the space between the letters and the figures shall be 20 mm.
7.  In the case of a motor cycle, with or without a side-car attached, as regards the place bearing the identification mark fixed on the front of the motor vehicle, in accordance with the slight curvature of the mudguard, the dimensions prescribed in paragraphs 4, 5 and 6 may be halved as shown in Diagram No. 3; and as regards the plate bearing the identification mark fixed at the rear of the vehicle the following requirements may be complied with in substitution for those prescribed in paragraphs 4, 5 and 6:
(a)all letters and figures shall be 50 mm high; every part of every letter and figure shall be 10 mm broad; and the total width of the space taken by every letter or figure shall be 30 mm as shown in Diagram No. 4;
(b)the space between adjoining letters and between adjoining figures shall be 10 mm and there shall be a margin between the nearest part of any letter or figure and the top, bottom and sides of the black surface upon which the identification mark is inscribed of at least 10 mm;
(c)where the identification mark is arranged in accordance with Diagram No. 4, the space between the upper and lower line shall be 10 mm and the space between the figure and the last letter shall be 20 mm; and
(d)where the identification mark is arranged in accordance with Diagram No. 5, the space between the letters and the figures shall be 20 mm.
8.  The dimension in paragraphs 4, 5 and 6 may be proportionately increased to a maximum of 11/2 times the specified sizes.
9.  Every plate bearing an identification mark shown in Diagram 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21 or 22 shall be sealed in such manner as the Registrar may require.