Table 1.

The broader contexts of HIA in NSW and HiAP in SA

	New South Wales: Health Impact Assessment	South Australia: Health in All Policies
Government system	The NSW Government serves 7,000,000 people, most of whom (approximately 67%) live in the urban centre of Sydney.	The SA Government serves 1,500,000 people, most of whom (approximately 77%) live in the urban centre of Adelaide.
	There have been several changes in Government leadership since 2001, with 4 different Labor Premiers between 2001 and 2011 and the Liberal Party forming Government in 2011.	Relatively stable Labor Government since 2002, with only one change in Premiership. In March 2014 Labor was re-elected with support from an Independent to form a minority government in SA.
Government support	No current central mandate for HIA – historically support from within the health system.	Explicit support, galvanised early on by the ‘Thinkers in Residence’ program. HiAP program tied to policy making processes, formal State strategic plan, governance structures and machinery of government. Bipartisan support also evident [36].