The United Kingdom Supreme Court unanimously ruled that, for the purposes of the Equality Act 2010, the legal meaning of the words ‘woman’ and ‘sex’ refers to biological sex. The decision came from a case concerning whether a person who has obtained a gender recognition certificate can be treated as a woman when applying the specific protections and duties under equality law.
The court examined the wording and structure of the Equality Act and considered how terms such as ‘woman’, ‘man’ and ‘sex’ should operate in practice. The judges concluded that the Act uses biological sex when applying the relevant provisions. The ruling therefore provides guidance to public bodies, employers and other organisations on how the law should be interpreted.
The judgment has significant practical and political importance because it affects how single-sex services, spaces, employment protections and other equality-related rules may be understood. It has also been welcomed by groups that argued that sex-based protections should remain based on biological sex, while transgender-rights organisations have raised concerns about the effect of the judgment on transgender people.
