Section 5-8. Requirements for light signals

The light emitted by a sign must produce a luminous contrast to its environment, in accordance with the intended conditions of use for the sign. The light must not reduce visibility or make the sign less visible.
The surface of the light signal may be of a single colour or contain a symbol on a specified background.
The colours must be in accordance with the table in Section 5-3.
When the light signal contains a symbol, the symbol must meet the provisions of this chapter.