The UK's Energy Act, which updates the country's energy legislation, came into action in 2008.
Source: Department of Energy and Climate Change, UK

The Energy Act updates energy legislation to: reflect the availability of new technologies (such as carbon capture and storage and emerging renewable technologies); correspond with the UK's changing requirements for secure energy supply (such as offshore gas storage); and to protect the environment and the tax payer as the energy market changes

The act was updated in 2010 to, for example, include provisions on Carbon Capture and Storage (CCS).