Road Rules 2014
Current version for 29 November 2019 to date (accessed 28 May 2020 at 03:04)
Part 18 Division 1 Rule 291–1
291–1   NSW rule: engine of stationary vehicle to be switched off to prevent noise
(1)  The driver of a vehicle that is stationary must switch off the vehicle’s engine so far as may be necessary for the prevention of noise.
Maximum penalty—20 penalty units.
(2)  Subrule (1) does not apply to an enforced stoppage owing to the necessities of traffic or so as to prevent the examination of any machinery of the motor vehicle if the examination is necessary by any failure or derangement of the machinery.
Note 1.
 Traffic is defined in the Dictionary, and vehicle is defined in rule 15.
Note 2.
 This rule is an additional NSW road rule. There is no corresponding rule in the Australian Road Rules.