https://www.gov.uk/government/publications/independent-review-of-data-statistics-and-research-on-sex-and-gender/review-of-data-statistics-and-research-on-sex-and-gender-executive-summary
Apologies if this has already been shared, I had a look and couldn't see that it had. Hopefully a sign that public surveys and data collection will soon be much clearer.
"The default target of any sex question should be sex (in other words, biological sex, natal sex, sex at birth)."
"Questions on gender identity should recognise that the concept of gender identity as such will be unfamiliar, unclear or irrelevant to some respondents, and that many respondents may not perceive themselves as having a gender identity."
"When reporting on or discussing issues relating to sex, it would be desirable to see a shift to using the term ‘sex’ instead of gender, given the ambiguity of the term ‘gender’."
"Both people’s material circumstances and their identities are important to their lives. We know that sex affects many dimensions of people’s lives, and we have much to learn about the ways in which having a transgender identity matters too. Rather than removing data on sex, government and other data owners should collect data on both sex and transgender identities, in order to develop a better understanding of the influence of both factors and the intersection between them."