You asked

​Please provide all correspondence between ONS and members of the Methodological Assurance Review Panel regarding guidance proposed to accompany the sex question in the 2021 census.

We said

Thank you for your request.

Please see the PDFs accompanying this response. These contain all the information in scope of your request.

Personal information has been redacted under Section 40(2) of the Freedom of Information Act (FOIA) 2000.

Drafts of MARP meetings have also been withheld under Section 22 of the FOIA, as we intend to release these in the future.

Some further information has been redacted, as this is not in scope of your request.