If you are storing or selling hazardous substances, such as explosives or fireworks, you will need to have a licence. There are also restrictions on the <a href="http://www.surreycc.gov.uk/sccwebsite/sccwspages.nsf/LookupWebPagesByTITLE_RTF/What age restrictions are there on productsQ?opendocument">age</a> of people allowed to buy these goods. <a href="http://www.surreycc.gov.uk/sccwebsite/sccwspages.nsf/LookupWebPagesByTITLE_RTF/Business advice?opendocument">Trading Standards</a> officers can advise on these issues.