Section 31 of the Violent Crime Reduction Act 2006 made it an offence for anyone to sell or transfer low powered air weapons, their component parts or detachable sound moderators by way of trade or business unless they are registered as a firearms dealer with the Chief Officer of Police.
The standard for the security of the premises is not as rigorous as that for a dealer registered under the Firearms Act 1968.
The fee for RFD status grant and renewal, for a period not exceeding three years, can be found using this link Fees and Charges - Dorset Firearms.
Legislation requires the registered dealer to record all transactions and has details of any air weapons that are transferred.