You may be aware that the Radioactive Substances Act (RSA93) is being significantly modified with effect from 05 April this year.  Much of its current content will in future be contained within new "Environmental Permitting Regulations 2010". The changes in RSA93 apply across all businesses in England and Wales that use radioactive substances

 
For further information, please visit the Environment Agency's website at http://www.environment-agency.gov.uk/business/sectors/32481.aspx or see the attached briefing document which may answer some of your questions.