protected by designation (i.e. listing, scheduling, etc.). Administering and maintaining the register of England's listed buildings, scheduled monuments, registered battlefields, World Heritage Sites and protected parks and gardens. This is published online as the National Heritage List for England. Advising local authorities on managing changes to the most important parts of heritage. Providing expertise through advice, training and guidance to improve the standards and skills of people working in heritage, practical conservation and access to resources. In 2009–2010 it trained around 200 professionals working in local authorities and the wider sector. Consulting and collaborating with other heritage bodies, local and national planning organisations e.g. the preparation of the 2010 Planning Policy statement for the Historic Environment (PPS5). Commissioning and conducting archaeological research, including the publication of Heritage Counts and Heritage at Risk on behalf of the heritage sector; these are annual research surveys into the state of England's heritage. It is not responsible for approving alterations to listed buildings. The management of listed buildings is the responsibility of local planning authorities and the Department for Communities and Local Government. Historic England also owns the National Heritage Collection of nationally important historic sites, currently in public care. However, it does not run these sites as this function is instead carried out by the English Heritage Trust under licence until 2023. See also Lists List of Conservation topics List of heritage registers List of country houses in the United Kingdom List of museums in England References External links The Historic England Archive: Search over 1 million catalogue entries describing photographs, plans and drawings of England's buildings and historic sites, held in the Historic England Archive. Britain from Above : presents the unique Aerofilms collection of aerial photographs from 1919-1953. National Heritage List for England website Heritage organisations in England Heritage registers in England British architectural history Conservation in England . Historic sites in England Interested parties in planning in England England, Historic National heritage organizations Department for Digital, Culture, Media and Sport Non-departmental public bodies of the United Kingdom government Government agencies established in 2015 2015 establishments in England Research organisations in England