This is a closed space for the Advisory Group (AG) involved with the BSI Flex 1906. The AG is made up of representatives of key stakeholder groups identified by BSI and the sponsor (UKRI). Their remit includes providing technical expertise and providing broad-based representation of the industry to which the BSI Flex relates. This BSI Flex is the fourth in the Future Flight Standards Programme, where BSI are working with Future Flight members, and a wider ecosystem of industry stakeholders, to prioritize and progress areas for standardization.