"Current standard:
Diesel: Fuel Standard (Automotive Diesel) Determination 2001 (10ppm sulfur as of 1 Jan 2009)
Petrol: Fuel Standard (Petrol) Determination 2001 (50ppm sulfur as of 1 Jan 2008)" (http://transportpolicy.net/index.php?title=Australia:_Fuels:_Diesel_and_Gasoline)
The current standards can be found at: http://transportpolicy.net/index.php?title=Australia:_Fuels:_Diesel_and_Gasoline