LIC-9.01 - Private Property Impound Tower Registration ARB-LIC-9.01 LIC-9.02 - Private Property Impound Towing Regulations ARB-LIC-9.02 LIC-9.03a - Fees for Private Property Impound (PPI) Towing and Storage in the City of Portland ARB-LIC-9.03a LIC-9.04 - Private Poperty Impound Conditions ARB-LIC-9.04 LIC-9.05 - Private Property Impound Prohibitions ARB-LIC-9.05