The purpose of this Information Notice is to inform operators of civil Unmanned Aircraft Systems (UAS), wishing to operate in congested areas, of the requirement to submit a safety case for assessment by the CAA. The rapid increase in operators wishing to conduct operations in support of commercial work, particularly for Small Unmanned Aircraft (SUA) and Small Unmanned Surveillance Aircraft (SUSA), has led to the requirement for a higher threshold of safety to safeguard the public; operators who meet this higher threshold will benefit from less restrictive limitations and an annual based permission (as opposed to a case by case non-standard permission).
Assessment of submitted CAOSCs will consider all elements of the operations (including airworthiness). Whilst this Information Notice is mainly aimed at SUA and SUSA, Unmanned Aircraft Systems (UAS) in other categories, under UK CAA competence, may be allowed to use the safety case approach when applying for permissions or exemptions; however, prior agreement from the CAA must be obtained in such cases. This Information Notice should be read in conjunction with IN 2014/081 Small Unmanned Aircraft Operations within London and Other Towns and Cities.