An All-Party Parliamentary Group consists of Members of both Houses who join together to pursue a particular topic or interest. An APPG must be open to all Members of both Houses, regardless of party affiliation, and must satisfy the rules agreed by the House. The Register of APPGs is maintained by the Parliamentary Commissioner for Standards.
APPGs Groups cover a diverse range of subjects.

They provide a valuable opportunity for parliamentarians to engage with individuals and organisations outside Parliament who share an interest in the subject matter of their Group.

They are not official parliamentary bodies and must avoid presenting themselves in a way which leads to their being confused with Select Committees.