Summary:
On June 29, 2026, the Australian Senate defeated a procedural motion by One Nation Senator Pauline Hanson to restore the Sex Discrimination Amendment (Acknowledging Biological Reality) Bill 2024 to the Notice Paper. The bill proposed amending the Sex Discrimination Act 1984 by removing gender identity as a protected attribute—first introduced by the Gillard Government's 2013 amendments. The motion was defeated after Labor and the Greens voted against restoring the bill, preventing it from being reintroduced for debate. Previous attempts to introduce similar legislation in September 2024 and 2025 were also defeated through procedural means. The outcome has reignited debate over women’s rights, transgender protections, and parliamentary process, with strong reactions from advocacy groups and legal experts. The outcome underscores the ongoing political and legal divisions surrounding sex and gender in Australia.
Detailed Report
1. Proposed Changes to the Sex Discrimination Act
The Sex Discrimination Amendment (Acknowledging Biological Reality) Bill 2024, introduced by Senator Pauline Hanson, aimed to amend the Sex Discrimination Act 1984 by removing all references to “gender identity” as a protected attribute. The bill sought to ensure that access to single-sex spaces—such as bathrooms, change rooms, women’s refuges, and sporting competitions—would be determined by biological sex. The stated policy rationale was to “acknowledge biological reality” and protect women’s rights, privacy, and safety, which proponents argued had been undermined by the 2013 amendments to the Sex Discrimination Act. Supporters contended that the bill would restore clarity to the law and safeguard women’s spaces, while critics warned it would strip vital protections from transgender and gender-diverse Australians.
2. Tracking the Bill’s Journey Through Parliament
The legislative history of this initiative includes several high-profile defeats. In September 2024, Senator Hanson’s initial attempt to introduce the bill was blocked at the first reading, with Labor and the Greens voting against its introduction. A subsequent motion to suspend standing orders was defeated 27 votes to 30, and an amendment to refer the bill to a Senate inquiry was defeated 24 to 29. In July 2025, Senator Alex Antic (Liberal) and Senator Matthew Canavan (Nationals) introduced the similar Sex Discrimination Amendment (Restoring Biological Definitions) Bill 2025, which sought to restore biological definitions of man and woman. That bill was also rejected at the first reading stage, with a division of 25 votes in favour and 36 against. On each occasion, the Coalition supported the procedural right to introduce and debate the bill but did not endorse its substantive content. Labor and the Greens consistently opposed the bills, citing the need to protect transgender Australians from what they perceived as discrimination and harm.
3. June 29, 2026 Vote Result
On June 29, 2026, Senator Hanson moved to restore the Sex Discrimination Amendment (Acknowledging Biological Reality) Bill 2024 to the Senate Notice Paper. The procedural motion was defeated after Labor and the Greens voted against it. This prevented the bill from being restored to the Notice Paper and blocked any immediate prospect of reintroduction and debate. This action was distinct from the bill’s original first reading, which was negatived on 12 September 2024. Today’s vote concerned a procedural attempt to revive the existing bill rather than a fresh first reading of new legislation. Senator Hanson condemned the decision as an “extraordinary step” and accused Labor and the Greens of silencing debate on women’s rights. Senator Alex Antic made similar criticisms, noting that Labor and the Greens had previously used procedural mechanisms to block both Hanson’s bill and his own Sex Discrimination Amendment (Restoring Biological Definitions) Bill 2025. The exact division count for the 29 June 2026 motion has not yet been published in official Senate records.
4. Broader Legal and Political Context
The issues raised by the bill stem from the 2013 amendments to the Sex Discrimination Act, enacted under the Gillard government. Those amendments introduced gender identity as a protected attribute and removed statutory definitions of “man” and “woman.” This shift created ongoing legal and social tension between protections based on biological sex and those based on gender identity, especially in relation to single-sex spaces, services, facilities, and competitive sport.
This tension has been brought into sharper focus by recent court decisions. In the Federal Court’s ruling in Giggle v Tickle, the court found that a transgender woman had been discriminated against on the basis of gender identity after being refused access to a women-only social media app. The decision has been cited by both supporters and opponents of further legislative change.
Reactions to the bill have been sharply divided. The Australian Human Rights Commission and advocacy groups have strongly opposed it, arguing that removing gender identity protections would weaken safeguards for transgender and gender-diverse Australians and risk breaching Australia’s international human rights obligations. Conversely, supporters — including some women’s rights organisations and conservative groups — contend that the 2013 changes have eroded women’s rights to privacy, safety, and fairness in single-sex environments.
The broader debate shows no sign of subsiding. In May 2026, Nationals MP Alison Penfold introduced the Sex Discrimination Amendment (Sex-based Rights) Bill 2026, which seeks to amend definitions in the Act and provide explicit protections for single-sex services, activities, and spaces for women. That bill remains on the Senate Notice Paper.
Conclusion
The Senate’s decision to defeat the procedural motion to restore the Sex Discrimination Amendment (Acknowledging Biological Reality) Bill 2024 reflects deep divisions in Australian politics over sex, gender, and anti-discrimination law. The outcome maintains existing legal protections for gender identity, while highlighting ongoing tensions between advocates for women’s rights and those seeking to protect transgender Australians. The debate is likely to persist as both sides continue to advance their positions in Parliament and the broader community.