From the BBC's political correspondent
twitter.com/bbcdavidwl/status/1600898263330144258?s=46&t=rzUbh4c1nyeBtlrZx733bg
"EXC: UK govt may not recognise a proposed new system in Scotland to allow people to legally change their gender. They're also not ruling out a legal challenge.
This could could hugely complicate matters for anyone changing gender in Scotland and then moving elsewhere in UK (1/5)
New process in Scotland will make easier to obtain a gender recognition certificate. UK Gov source said "absolutely" possible rest of UK won't recognise Scot certificates
Source said it's "test case scenario" of how Holyrood bill could "undermine Westminster competencies". 2/5
Same source told me that Scottish ministers wanted to paint Scotland as a "haven of inclusivity" in comparison to a "nasty Westminster".
Kemi Badenoch (equalities minister) has written to Scot Gov expressing concerns about bill 3/5
Scot Gov spokes said Ms Badenoch was responding to letter sent by Scot Gov in Oct "setting out relevant policy considerations for the UK Government, undertaking to work constructively on cross-border issues, and offering to meet."
Scot Gov say happy to meet Ms Badenoch 4/5
This legislation looks set to be passed by MSPs this month.
It's been controversial in Scotland, and looks like some of that controversy could shortly spill over into cross-border issues. 5/5"