Every few years in the national cultural and ecological protection zone.

National cultural and ecological protection zones are evaluated every five years.

"National cultural and ecological protection zone" refers to a specific area with the protection of intangible cultural heritage as the core and comprehensive protection of cultural forms with rich historical and cultural accumulation, good living conditions, important values and distinctive characteristics, which was established with the consent of the Ministry of Culture and Tourism. [1] The construction of national cultural and ecological protection zones should adhere to the concept of giving priority to protection, overall protection, and seeing people see things and life, so as to protect both intangible cultural heritage and the human and natural environment that breeds the development of intangible cultural heritage, and realize the goal of "rich heritage, strong atmosphere, distinctive features and benefiting the people". [1] 201912.26, official website, the Ministry of Culture and Tourism, issued the Notice of the Ministry of Culture and Tourism on Publishing the List of National Cultural and Ecological Protected Areas, which announced the list of national cultural and ecological protected areas. Among them, seven experimental zones were selected, including Minnan Cultural Ecological Protection Zone, Huizhou Cultural Ecological Protection Zone, Regong Cultural Ecological Protection Zone, Qiang Cultural Ecological Protection Zone, Wuling Mountain Area (Xiangxi) Tujia and Miao Cultural Ecological Protection Zone, Marine Fishery Cultural Ecological Protection Zone (Xiangshan) and Qilu Cultural Ecological Protection Zone. Cultural and ecological protection zone refers to the restoration of intangible cultural heritage (oral traditions and expressions, including intangible cultural heritage with language as the medium; Performing arts; Social customs, etiquette and festivals; Knowledge and practice about nature and the universe; Traditional handicraft skills and cultural space related to the above-mentioned traditional cultural expressions) and related material and cultural heritage (immovable cultural relics, movable cultural relics, historical and cultural blocks, villages and towns, etc.). ) are interdependent, closely related to people's life and production, and in harmony with the natural environment, economic environment and social environment.

Legal basis: Measures for the Administration of National Cultural and Ecological Protection Zones Article 1 In order to strengthen the overall regional protection of intangible cultural heritage, maintain and cultivate cultural ecology, inherit and carry forward China's excellent traditional culture, strengthen cultural self-confidence and meet people's growing needs for a better life, these measures are formulated in accordance with the People's Republic of China (PRC) Intangible Cultural Heritage Law and other laws and regulations.