(1)  Subject to the conditions specified in subclause (2) , regulation 106(5)(b) , (c) and (d) of the Vehicle Standards Regulations do not apply in respect of the part of a warning sign fitted to the rear of a bus that displays the words "WHEN LIGHTS FLASH".

(2)  The exemption under subclause (1) is subject to the condition that –

(a) the bus is fitted with part of a warning sign that –

(i) displays the words "WHEN LIGHTS FLASH"; and

(ii) is a single sign that is a minimum of 300 millimetres wide; and

(iii) is between 210 and 440 millimetres high; and

(iv) displays each word on a separate line with each word being centred horizontally on the line; or

(b) the bus –

(i) has a GVM that does not exceed 6 000 kilograms; and

(ii) is fitted with part of a warning sign that is made up of 3 separate signs that –

(A) together display the words "WHEN LIGHTS FLASH"; and

(B) comply with regulation 106(5)(b) and (c) of the Vehicle Standard Regulations, as applicable; and

(C) are each 300 millimetres long and 70 millimetres high; and

(D) when fitted, are aligned horizontally and are vertically stacked (without space between each sign) to read "WHEN LIGHTS FLASH".