Summary of Emission Requirements for New Petrol Passenger Cars In Australia 1972–2010

Standard	Date Introduced #	Exhaust Emission Limits (petrol vehicles)			Source Standard / Test Method
		HC	CO	NOx
ADR26	1/1/72	NA	4.5% by vol	NA	Idle CO test
ADR27	1/1/74	8.0–12.8 g/test	100–220 g/test & 4.5% by vol	NA	ECE ‘Big Bag’
ADR27A	1/7/76	2.1 g/km	24.2 g/km	1.9 g/km	US ‘72 FTP
ADR27B	1/1/82	2.1 g/km	24.2 g/km	1.9 g/km	US ‘72 FTP
ADR27C +	1/1/83	2.1 g/km	24.2 g/km	1.9 g/km	US ‘72 FTP
ADR37/00	1/2/86	0.93 g/km	9.3 g/km	1.93 g/km	US ‘75 FTP
ADR37/01	1/1/97–1/1/99	0.26 g/km	2.1 g/km	0.63 g/km	US ‘75 FTP
ADR79/00	1/1/03–1/1/04	0.25*g/km	2.2 g/km	0.25* g/km	UN ECE R83/04 (Euro 2)
ADR79/01	1/1/05–1/1/06	0.2 g/km	2.3 g/km	0.15 g/km	UN ECE R83/05 (Euro 3)
ADR79/02	1/7/08–1/7/10	0.1 g/km	1.0 g/km	0.08 g/km	UN ECE R83/05 (Euro 4)

# where 2 dates specified, first date applies to vehicle models first produced on or after that date, with all new vheilces required to comply by the second date.
+ ADR27C introduced a number of administrative changes, based on procedures of ADR37/00.
* ADR 79/00 has a combined HC+NOx limit of 0.5, so the HC:NOx split is indicative only
“NA” means no limit applies.