There are four Hunters flying with Hawker Hunter Aviation at Scampton, undertaking assorted tasks on behalf of the MoD, often for the Royal Navy. All are operated on the military aircraft register, and as such should be exempt from the CAA ruling.
Three are ex-Swiss F.58s, serialled ZZ190, ZZ191 and ZZ194, and the other is T.8B XF995. This latter aircraft has previously been civil registered as G-BZSF, but was transferred to the MAR in 2007.