Paragraph 36 Mounting and backing of signs
Where a sign shown in a diagram (other than the diagrams referred to in paragraphs (2) to (4) or direction 38 or 39) in Schedules 1 to 5, 7, Part II of Schedule 10, Schedule 12 or a sign prescribed in regulation 41 is mounted on a post specially provided for the purpose (“the post”), that part of the post which extends above ground level shall be coloured grey or black, except that—
where the post is made of aluminium, concrete, galvanised metal or wood, the post may retain its natural colour; and
where the post is not likely to be readily visible to pedestrians if wholly coloured grey or black, a yellow or white band not less than 140 nor more than 160 millimetres deep may be provided on the post, the lower edge of the band being not less than 1500 nor more than 1700 millimetres above ground level.
Where a beacon or lamp of a kind prescribed by regulation 42 or 43 is mounted on a structure specially provided for the purpose, the structure shall be coloured grey, red, white or yellow, or in alternate bands of red and white or of black and white.
The post provided for the mounting of the sign shown in diagram 605.2 shall be coloured in alternate black and yellow bands each 300 millimetres deep with a black band uppermost below the bottom of the sign face, and the yellow bands may be illuminated by means of retroreflecting material.
A post or other support provided for the mounting of a sign shown in diagram 651, 970, 971, 972, 973, 973.1, 2610, 2610.1, 2610.2, 7104 or 7105 may be of any colour.