There are many laws governing drivers, riders and pedestrians. Most driving offences in South Australia are covered by the Road Traffic Act 1961 (SA) and in regulations made under this Act, such as the Australian Road Rules1999 (SA). In addition, the Motor Vehicles Act 1959 (SA) regulates (among other things) the issuing of driving licences, the registration of motor vehicles and compulsory third party insurance. A breach of these provisions is also an offence. Although all the offences under this legislation are summary offences, more serious offences (indictable offences) such as causing death or injury by reckless or dangerous driving, are contained in the Criminal Law Consolidation Act 1935 (SA).
For a comprehensive summary of traffic offences and penalties, see Expiation Offences, Codes and Fees - Traffic PD320A on the SAPOL website.
As of 1 September 2014 new speed restrictions apply for emergency service speed zones, see Speeding.