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.

Data matters letter
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Data protection complaint template letter

A template letter of complaint to send when you are concerned that an organisation is misusing your data by confusing sex and gender.

For guidance on collecting personal data on sex and gender identity, see our publication Data matters (and send a copy along with the letter).