There are 23 national parks in Poland. These were formerly run by the Polish Board of National Parks (Polish: Krajowy Zarząd Parków Narodowych), but in 2004 responsibility for them was transferred to the Ministry of the Environment. Most national parks are divided into strictly and partially protected zones. Additionally, they are usually surrounded by a protective buffer zone called otulina. The area of a national park is divided into different zones using separate methods of conservation. There are strict protection zones, as well as active and landscape-related ones.