The UK’s Supreme Court has ruled that “man”, “woman” and “sex” in the Equality Act 2010 refer to sex, not self-ID or paperwork (gender-recognition certificates). This agreed with our legal interpretation. We have published new guidance and are in the process of updating our publications to reflect the judgment. We are also working to provide answers to the questions we're hearing from supporters and the media. We will publish these as soon as possible.

The political erasure of sex

Jane Clare Jones with Lucy MacKenzie (2020), Oxford University

The first in a series, this report ‘Sex and the Census’ focuses on planned changes to the way that data on sex is collected in the UK census and outlines why collecting census data on males and females matters.