Yep - CB is correct. That is the form and it is still current(ly in use) - from vanilla flavoured PPL to the IR-SPA-ME (instrument rating, single pilot aeroplane, multi engine) attached to an ATPL.
As an FE (based in Florida) I use them almost daily and, to ensure that they get there, I send them to the CAA on your behalf - in a mass mailing envelope that goes through a 'tracking' procedure.