When did Weifang's vacant housing policy start?

According to relevant information, Weifang's vacant housing policy began on 20 19. 20 18 12 13, Weifang New Deal learned from the Municipal Price Bureau that, on the basis of extensive consultation, Weifang recently officially promulgated the Implementation Measures for the Management of Property Service Charges in Weifang (hereinafter referred to as the Measures) and the Notice on the Benchmark Price of Public Property Service Fees and Motor Vehicle Parking Fees in Weifang (hereinafter referred to as the Measures)