In 2019, the Tasmanian Parliament passed the Justice and Related Legislation (Marriage and Gender Amendments) Act. At first glance, the law looks like a technical update—modernising language, expanding anti-discrimination protections, and creating new processes for recording gender. But beneath the surface, it redefines the way the law understands sex and gender—with profound consequences for women and girls.
What Changed?
The Act amends a long list of laws, from the Anti-Discrimination Act to the Births, Deaths and Marriages Registration Act (BDM). Key changes include:
- Gender expression is now protected under anti-discrimination law.
- “Intersex” has been replaced with the broader term sex characteristics.
- References to “husband and wife” are replaced with spouse, and “mother and father” often replaced with parents.
- The BDM Act now creates a pathway for people aged 16+ to self-declare their gender by statutory declaration—no medical evidence allowed.
- Parents or guardians can apply for children under 16, with a magistrate able to approve applications based on the child’s “will and preferences.”
- “Gender” is defined broadly: male, female, indeterminate, non-binary, or any word or phrase someone uses to describe themselves.
- Crucially: once a gender is registered, that person is legally of that gender for all Tasmanian laws. And wherever the law says “sex,” it now means registered sex or registered gender.
The Conflation of Sex and Gender
This is the law’s most radical shift. By treating sex and gender as interchangeable, it effectively rewrites every Tasmanian law that mentions “sex.”
That means sex-based protections—whether for women’s refuges, hospital wards, changing rooms, scholarships, or sport—can now be claimed on the basis of self-declared gender, not biological sex. What was once clear and practical has become blurred and contestable.
Weak Points and Risks for Women
- Erosion of single-sex services: Women’s refuges, prisons, and crisis centres may be compelled to accept male-born individuals who register as female.
- Sports fairness and safety: If “female” in law includes males with a registered female gender, women’s categories in sport are no longer secure.
- Data integrity loss: Birth certificates can omit sex altogether, or display only gender. This undermines health, justice, and policy data that rely on knowing sex at birth.
- Frequent, easy changes: A person can change their registered gender every 12 months, creating instability and opportunities for misuse.
- Children’s safeguarding: Decisions for under-16s hinge on “will and preference,” without mandatory clinical or safeguarding assessments.
- Broad, undefined gender categories: The law allows almost any self-description. The Registrar can refuse some, but guidance is vague.
- Free speech concerns: The expanded anti-discrimination provisions risk chilling legitimate advocacy for women’s sex-based rights, if those rights are framed as “exclusionary.”
Why This Matters for Women’s Rights
Generations of women fought to secure sex-based protections—in voting, employment, education, safety, and sport. By replacing biological sex with self-declared gender, Tasmania’s law risks undoing much of that hard-won ground.
Women’s spaces and opportunities exist for reasons of privacy, safety, fairness, and dignity. Without clear legal recognition of sex, women and girls are left vulnerable in contexts where sex matters most.
What Needs to Change
There are ways to balance rights without erasing sex. Tasmania could:
- Reinsert explicit references to biological sex in laws where it matters (sport, refuges, prisons, data collection).
- Create clear sex-based exceptions for safety, privacy, and fairness.
- Protect the recording of sex at birth as a confidential but always-available category.
- Introduce proper safeguarding measures for children before legal changes are made.
- Provide speech protections so women can advocate for sex-based rights without fear of discrimination complaints.
Final Word
Tasmania’s 2019 Act was presented as inclusive reform. But in practice, it has created a legal framework where sex is erased, and women’s rights risk being overwritten by gender identity. If the law is to serve everyone fairly, it must recognise both: the lived reality of gender identity, and the material, immutable reality of sex.