Interesting the guidance makes mention of the Gender Recognition Act (which started a lot of attempts by trans extremists to remove the human rights of women and children in the 1st place).
In the GRA, section 12, it confirms men remain fathers whatever their GI beliefs or GRC status, and women remain mothers, whatever their GI beliefs or GRC status. So if you're a woman and give birth but have a GRC lying you're a man, you are still the mother of the baby.
This is important as abusive trans extremists have tried to coerce NHS Trusts and eg maternity staff to refer to a mum who says she's a man as a father/ dad. This is illegal and absue of the child. None of the NHS safeguarding teams have called it out or disciplined staff who harm and abuse children of transpeople in this way.
This has now gone through the courts - UK (judgement link childrenoftransitioners.org/six-children/ ) ECHR (June 2026 judgement https://www.matrixlaw.co.uk/news/challenge-to-registration-of-transgender-man-as-mother-declared-inadmissible/ ).
Lying about who a child's the mother/ father is has been found to be in breach of the child's human rights (and the UK Supreme Court found it to be emotional abuse of the child (in breach of the Children Act protecting children from abuse as well as the GRA) .
So I really hope NHS Trusts and child safeguarding teams start protecting the children involved.
Links here:
https://www.matrixlaw.co.uk/news/challenge-to-registration-of-transgender-man-as-mother-declared-inadmissible/
and
https://childrenoftransitioners.org/six-children/