Hi all. Thanks for the 

We must campaign for all the relevant Exceptions in the UK Equality Act 2010 be made mandatory
I don't think it can exactly work like this. The EqA is really broad - it applies to private companies, public sector, charities, associations etc... and all kinds of situations. It can't specify when things can be mixed sex (most of the time) and when they should be single / separate sex (i.e. the exemptions). It is principle based.
But I think where better guidance can help is in making clear that:
- for public sector orgs changing policy (e.g. going from single sex changing to unisex changing village) requires an Equality Impact Assessment
- single sex means single sex - if you are excluding men from an all women facility then you are using the exemption. You shouldn't apply it ambiguously way
- if you are applying the single sex exemption it means that providing a single sex service has been deemed a legitimate aim. This means it must be proportionate means to exclude people of the opposite sex, as this is the only way to provide a single sex service.
-- organisations/services should be inclusive of transgender people (people with the protected characteristic "gender reassignment"), but this does not require or imply access to that single/separate sex services of the opposite sex. In most cases providing a unisex/single user/'gender neutral' option in addition to separate sex means everyone has 'somewhere to pee'.
how will they be excluded if they have a birth certificate a la Aimee saying they were born female?
You are right GRC and the legal fiction of people changing their birth certificates makes this harder to implement, but....
-- there are many more more self identified TW than those with a GRC, so its worth getting the principle right with the majority
-- I think if this is clear you can then argue that having a GRC also does not give someone the right to access single sex spaces where others are naked /vulnerable etc... (because why should it?)
I think next thing we need to do is push the govt (via Victoria Atkins? ) in its response to the WESC report , to give the EHRC as strong push to develop the new Code of Practice (with a broad scope, not just refuges, aligned to the Equality Act and the protected characteristic of sex etc...)