OBS_VALUE: Authorisations for customs storage are determined by HMRC, which is a government department. The Civil Aviation Authority (CAA)  is a public corporation of the Department for Transport of UK, acting as UK's independent specialist aviation regulator. https://www.gov.uk/government/organisations/civil-aviation-authority#:~:text=The%20Civil%20Aviation%20Authority%20(CAA,the%20ATOL%20financial%20protection%20scheme