After a minimum of two years and if certain key criteria are met, some trans people can apply for a Gender Recognition Certificate (CRC) under the Gender Recognition Act (GRA) 2004. If granted, the person acquires all the legal rights and responsibilities of their new gender and can get a new birth certificate.
Making it easier for people to change their gender What do you think?
Reform of the Gender Recognition Act – Government Consultation
Download here – Gender Recognition Act