“One for one” variations10.61 A variation is always necessary if a certificate holder wishes to change one of the firearms,even if they wish to purchase one identical to the one they are selling (Wilson v Coombe,Queen’s Bench Divisional Court, July 1988). “One for one” variation refers to firearms thatare authorised to be acquired following the disposal of a firearm or a request to changean existing authority to acquire. There is no set time in which the certificate holder mustapply for a replacement authority once their firearm is disposed of. The keeping of openauthorities indefinitely should be discouraged, subject to a collector seeking particularfirearms.
Applications for “one for one” variations should be made by the certificate holdersubmitting their firearm certificate together with a completed Form 202 to the policefirearms licensing department. Such variations are processed free of charge. In most cases,it will not be necessary to re-examine the applicant’s circumstances. Further enquiries willbe necessary, however, if for example the application is for a change of use or for a fullborefirearm when the holder’s shooting club only has facilities for small-bore shooting.