text: A national register of historic parks and gardens, (e.g. Rangers House, Greenwich) was set up in 1984, and a register for historic battlefields (e.g. the Battle of Tewkesbury) was created in March 1995. 'Registration' is a material consideration in the planning process. In April 1999 English Heritage merged with the Royal Commission on the Historical Monuments of England (RCHME) and the National Monuments Record (NMR), bringing together resources for the identification and survey of England's historic environment. By adoption, that included responsibility for the national record of archaeological sites from the Ordnance Survey, the National Library of Aerial Photographs, and two million RAF and Ordnance Survey aerial photographs. Those, together with other nationally important external acquisitions, meant that English Heritage was one of the largest publicly accessible archives in the UK: 2.53 million records are available online, including more than 426,000 images. In 2010–11, it recorded 4.3 million unique online user sessions and over 110,000 people visited NMR exhibitions held around the country in 2009–10. In 2012, the section responsible for archive collections was renamed the English Heritage Archive.
  As a result of the National Heritage Act 2002, English Heritage acquired administrative responsibility for historic wrecks and submerged landscapes within  of the English coast. The administration of the listed building system was transferred from DCMS to English Heritage in 2006. However, actual listing decisions still remained the responsibility of the Secretary of State for Culture, Media and Sport, who was required by the Planning (Listed Buildings and Conservation Areas) Act 1990 to approve a list of buildings of special architectural or historic interest.