The Environment Agency is obliged by various pieces of legislation to maintain and make available public registers of information. The Environmental Permitting Regulations (EPR) came into force on 6 April 2008. These combined Pollution Prevention and Control (PPC) and Waste Management Licensing (WML) regulations. All existing PPC permits or Waste Management Licences automatically became Environmental Permits from 6 April 2008. The regulations were amended in April 2010 such that all Water Discharge consents, Groundwater authorisations and Radioactive Substances registrations and authorisations automatically became Environmental Permits.