On 21/05/2013,
you requested for the version in force on 21/05/2013
incorporating all amendments published on or before 21/05/2013.
The closest version currently available is that of 25/03/1992.
SMOKY AND NOISY EXHAUSTS
104. All vehicles must be maintained in such a condition and driven in such a manner as to eliminate the emission of smoke, which is a nuisance and which may obscure the view of drivers of vehicles following or approaching from the opposite direction. Smoke is also hazardous to health.
105. All vehicles must be maintained in such a condition and in such a manner as to eliminate excessive noise.