Temporary licences come in handy
My shotgun certificate and firearms certificate came up for renewal in September 2015. I have held licences for over 30 years. My application was made in early June 2015, I was able to notify a change of address ahead of moving house at time of June application with location of new gun safe facilities duly inspected the following November, leaving the original safes behind at the previous address on moving day the following January. Temporary licenses filled the gap and my certificates finally arrived a few weeks later in the March.