(a) It is the policy of the District to approve block parties. (b) A block party application or expedited block party application shall not be denied unless: (1) It fails to meet the requirements of this chapter; (2) The event would create a significant public safety concern; (3) The event would create a significant traffic problem; or (4) There is substantial neighborhood opposition to the block party. (c) An application for a block party preauthorization shall not be denied unless the Department determines that: (1) The application fails to meet the requirements of § 9-632.01; (2) Frequent closures of the block would create significant public safety concerns or traffic problems; or (3) There is substantial neighborhood opposition to the application.