Given the popularity of the APPG and the crowded nature of each agenda, the APPG has established a small number of SIGs. These groups meet informally and report back to the APPG.
There are four SIGs (see below). Each SIG hold one-hour, seminar-style meetings for between 20 and 30 attendees, with a single-item agenda. Papers will be circulated in advance and taken as read.