In For Women Scotland Ltd v The Scottish Ministers, the UK Supreme Court addressed a legal dispute about the definition of ‘woman’ under the Equality Act 2010 (EqA 2010) and the Gender Representation on Public Boards (Scotland) Act 2018 (ASP 2018). The case concerned whether the Scottish Government’s statutory guidance including trans woman with Gender Recognition Certificates (GRCs) under the term ‘woman’ was lawful. The feminist organisation For Women Scotland (FWS) argued that the EqA 2010 defines ‘woman’ strictly by biological sex, excluding trans women with GRCs from the category.
The Court unanimously upheld FWS’s appeal, ruling that ‘man’, ‘woman’, and ‘sex’ in the EqA 2010 refers to biological sex. It found that the Act’s provisions, especially those related to pregnancy, maternity, and single-sex services, only function coherently when interpreted biologically. The Court emphasised that a certificated sex approach would create impracticalities and legal inconsistencies across the Act, such as in the enforcement of single-sex spaces and protections for sexual orientation.
Furthermore, the judgment clarified that, while trans people are protected under the characteristic of gender reassignment in the EqA 2010, this does not mean that they are covered under the sex-based provisions unless those protections explicitly apply. The Court rejected the idea that the EqA 2010 allows for dual meanings of sex in different contexts, confirming that a consistent, biological interpretation is necessary for clarity and legal coherence.
However, it is important to echo Lord Hodge’s statement in his summary:
‘But we counsel against reading this judgment as a triumph of one or more groups in our society at the expense of another, it is not.’
While trans people may not fall under the definition of a ‘man’ or a ‘woman’ in the EqA 2010, gender reassignment remains a protected characteristic in its own right and thus are protected from discrimination on those grounds. Further, they continue to receive protection against direct discrimination, indirect discrimination and harassment on the ground of perception or association with their acquired gender. As highlighted in the judgment, if a trans woman applies for a job and, despite performing best in the interviews, a biological man is given the role, she would still have a claim for direct discrimination because of her perceived sex and her comparator would be someone who is not perceived to be a woman. ‘The fact that she is not a biological woman should make no difference to her claim.’
The Supreme Court’s decision has significant implications for gender and equality law in the UK. By affirming that ‘sex’ in the EqA 2010 means biological sex, the ruling limits the scope of gender recognition to areas where legal rights are based on sex characteristics. However, it maintains the existing protections for trans individuals under gender reassignment provisions.