The Act primarily regulates "public sector agencies" and "public sector officials". Section 3 defines a public sector agency expansively to include Public Service agencies, the Teaching Service, statutory bodies representing the Crown, auditable entities under the Government Sector Audit Act 1983, the NSW Police Force, local government authorities (councils, county councils, joint organisations under the Local Government Act 1993), certain State owned corporations not subject to the Commonwealth Privacy Act 1988, and prescribed data service providers. Regulations under s 4B can deem agencies as part of, or separate from, others for Act purposes, with the Minister required to consider information sharing appropriateness.
Public sector officials (s 3) encompass Governor or Minister-appointed statutory officers, judicial officers, Public Service, Transport Service, Teaching Service, NSW Health Service and Police Force employees, political office holders' staff under the Members of Parliament Staff Act 2013, local government councillors and employees, Legislative Council/Assembly staff, and anyone employed, engaged by, or acting for the above.
The Act binds these entities and individuals in their official capacities (s 7). Investigative agencies (Ombudsman, ICAC, Law Enforcement Conduct Commission, Health Care Complaints Commission, etc.) and law enforcement agencies (NSW Police, Crime Commission, DPP, etc.) receive broad exemptions under ss 23, 24, 27, and 27A–27C, but only for core functions; administrative and educative functions remain subject to the IPPs (s 27(2)).
Individuals are affected as data subjects. Any person about whom personal information is held may exercise rights to notification (s 10), access and correction (ss 14–15), internal review (s 53), and NCAT review (s 55). Affected individuals in data breaches (s 59D(2)) must be notified unless exemptions apply. Convicted inmates and their associates face restrictions on monetary compensation (ss 53(7A), 55(4A)).
The Privacy Commissioner (appointed under s 34, with veto and removal safeguards in ss 35–35C) and Information and Privacy Advisory Committee (Part 7) exercise oversight roles. The Commissioner may investigate any agency except ICAC in certain respects (ss 37(4), 38(2), 40(4), 42(3)). Cyber Security NSW and the Information and Privacy Commission receive mutual exemptions for information sharing under the MNDB scheme (ss 59ZF–59ZG).
Private sector entities are generally outside scope, as are Commonwealth agencies (defined by reference to the Privacy Act 1988 (Cth)). However, s 19(2) regulates disclosures to out-of-State or Commonwealth bodies, requiring substantially similar protections or consent. Contractors providing data services for prescribed agencies fall within the public sector agency definition (s 3(g)).
Recent amendments have widened the net: the 2022 changes expressly include State owned corporations not covered by the Commonwealth Act as public sector agencies (s 3(f1)), and Part 6A applies to breaches involving external persons (s 59D(3)(c)). Courts and tribunals are exempt for judicial functions (s 6), but public registers they maintain may still be subject to Part 6.
In practice, compliance falls heaviest on large agencies like NSW Health, Transport for NSW, and local councils, which must maintain breach registers (s 59ZE), publish data breach policies (s 59ZD), and train staff to recognise reportable incidents within the 30-day assessment window (s 59E). Smaller agencies may rely on shared assessors (s 59G(2)(b)–(c)) but remain personally liable for IPP breaches via s 21 and s 62 offences.