New South Wales Consolidated Regulations

ROAD RULES 2014 - REG 145

145 Driver being overtaken not to increase speed

If a driver is overtaking another driver on a two-way road by crossing a dividing line, or crossing to the right of the centre of the road, the other driver must not increase the speed at which the driver is driving until the first driver--

(a) has passed the other driver, and

(b) has returned to the marked lane or line of traffic where the other driver is driving, and

(c) is a sufficient distance in front of the other driver to avoid a collision.

: Maximum penalty--20 penalty units.

Note--:
"Centre of the road" ,
"dividing line" ,
"marked lane" ,
"overtake" and
"two-way road" are defined in the Dictionary.