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.

Gender Identity in the 2021 Census of England and Wales: What Went Wrong?

By Michael Biggs.

The 2021 Census of England and Wales was the first in the world to elicit information on gender identity from an entire population. This paper argues that its results are implausible on the dimensions of geography, education, ethnicity, and religion.