People in Scotland will be able to self-identify their sex in next year's census, official guidance has said.
Participants will not be required to give the same sex as that recorded on their birth certificate and a voluntary question on trans status will allow people to identify as non-binary.
National Records of Scotland, the organisation responsible for the Scottish census, said people do not need a Gender Recognition Certificate (GRC) to identify as a different gender from the one registered at birth.
The guidance states: "If you are non-binary or you are not sure how to answer, you could use the sex registered on your official documents, such as your passport.
"A voluntary question about trans status or history will follow if you are aged 16 or over. You can respond as non-binary in that question."
The census in Scotland has been delayed by a year due to the pandemic.
England, Wales and Northern Ireland held their counts earlier this year.
In this year's census in England and Wales, people were asked for the first time, the voluntary question of: "Is the gender you identify with the same as your sex registered at birth?"
The Office of National Statistics said: "Your answer helps your local community by allowing charities, public bodies, and local and central government to understand what services people might need.
"This information helps monitor equality between groups of people of different gender identities.
"Your answer will help public bodies to identify discrimination or social exclusion based on gender identity and work to stop it from happening."
