Girlguiding UK has announced that transgender girls currently participating in its programmes will be required to leave single-sex spaces by September under a revised membership policy.

The organisation, one of the largest youth groups in the United Kingdom, said the change forms part of an updated framework designed to align its operations with evolving legal guidance and safeguarding considerations.

The new policy establishes clearer criteria for participation in activities designated for girls, with an emphasis on maintaining single-sex provisions in certain settings.

Under the updated rules, affected members will be given a transition period to adjust to the changes, with support measures expected to be put in place.

These may include guidance for families and options for alternative participation where appropriate, though details are still being finalised.

Girlguiding has indicated that the decision follows an extensive review process, including consultation with legal experts and stakeholders.

The organisation has stated that its priority remains providing a safe and supportive environment for all young people while ensuring compliance with relevant legal frameworks.

The move reflects a broader national conversation about how youth organisations, schools, and public institutions interpret and apply single-sex provisions.

Recent developments in legal and regulatory guidance have prompted many organisations to reassess their policies in order to balance inclusion with safeguarding responsibilities.

Responses to the announcement have varied, with some welcoming greater clarity in policy, while others have raised concerns about the implications for inclusivity.

Girlguiding has emphasised that it remains committed to respectful engagement and to supporting all members throughout the transition period.

The policy is set to take full effect in September, marking a significant shift in how one of the country’s most established youth organisations manages participation and membership criteria.