What it does
The Migration Act 1958 (the Act) is the foundational statute governing Australia's immigration framework. As stated in its long title and object in s.4(1), it regulates "in the national interest, the coming into, and presence in, Australia of non-citizens". To achieve this, the Act establishes a comprehensive visa-based system as the exclusive source of authority for non-citizens to enter or remain (s.4(2)), while providing for personal identifiers (s.4(3)), removal or deportation of those whose presence is not permitted (s.4(4)), and regional processing of unauthorised maritime arrivals (s.4(5)).
Structurally, the Act is divided into 13 Parts, with Part 2 (Arrival, presence and departure of persons) forming the bulk. It defines key concepts in s.5, including "unlawful non-citizen" (s.14: a non-citizen in the migration zone without a valid visa), "lawful non-citizen" (s.13: a non-citizen with a visa in effect), and "migration zone" (s.5(1): essentially Australia's land, sea installations, and resources installations, excluding certain external territories post-excision amendments).
The Act's core mechanisms include:
- Visa framework (Division 3 of Part 2): Visas are the primary tool, with classes prescribed by regulation (s.31(1)) or created by the Act (e.g. protection visas under s.35A, bridging visas under s.37). Criteria for grant (s.65) require satisfaction of health, character, and other prescribed conditions. The "points" system for skilled visas operates under Subdivision B (ss.92-96). Special rules apply to protection claims (s.5H for refugee definition, s.5J for well-founded fear of persecution, incorporating changes from the Migration and Maritime Powers Legislation Amendment (Resolving the Asylum Legacy Caseload) Act 2014).
- (Division 5): Non-citizens must present identity evidence and comply with immigration clearance (s.166). Failure leads to detention (s.189).
