Businesses in the weapons and ammunition category supply, service or trade in equipment intended for sporting, pest-control, collecting or other lawful uses. Products may include shotguns, rifles, air weapons, ammunition and related items such as sights, cases, cleaning equipment and protective accessories. Some businesses also offer repairs, servicing, parts supply, secure storage or advice on choosing and caring for equipment. The items available and the services provided depend on the business and the legal controls applying to each product. In the UK, firearms and ammunition are subject to legislation governing possession, sale, transfer and storage; many firearms require the appropriate certificate, and businesses dealing in firearms generally need to be registered as firearms dealers. Requirements differ for air weapons and other categories, so lawful businesses check relevant permissions and records when supplying controlled goods.