What does civil air defense parking space mean?

[KaiMarie]

Civil air defense parking spaces refer to parking spaces within civil air defense projects. The usage rights of these spaces are authorized by the city's civil air defense office to the construction entities of the buildings. The construction entities can transfer the usage rights of these parking spaces to individuals and organizations, but the usage period must not exceed 20 years. If national conditions require, these spaces can be compulsorily requisitioned. The latest policies regarding civil air defense parking spaces are: 1. The usage rights of civil air defense parking spaces can only be leased, not sold, and cannot be given as gifts either; 2. A 20-year lease is the maximum term allowed by contract law; 3. No individual or organization has the right to sell or transfer the property rights or usage rights of civil air defense projects, as this would harm the interests of the state and the buyers, and any contracts or agreements signed to this effect would be invalid.