The driver of a public bus approaching or at B lights showing a yellow B light must stop –

(a) if there is a stop line at or near the B lights and the driver can stop safely before reaching the stop line – as near as practicable to, but before reaching, the stop line; or

(b) if there is no stop line at or near the B lights and the driver can stop safely before reaching the B lights – as near as practicable to, but before reaching, the nearest or only B lights.

Penalty: Fine not exceeding 10 penalty units.

Note 1 : Yellow B light and stop line are defined in the dictionary.

Note 2 : Rule 283 explains when the driver of a public bus does not have to stop for a red B light.