53 Pa. C.S. § 8147
The governing body of any local government unit which has determined to issue any revenue bonds or notes, or any guaranteed revenue bonds or notes, may provide, by ordinance, for such pledges of or priorities in such rentals, revenues, receipts, rates and charges to be received from projects of the issuing local government unit as may be desirable. The pledge or priority shall be perfected as a security interest against all creditors of the local government unit and all third parties, in accordance with the terms of the ordinance, from and after the filing of a financing statement or statements in accordance with Title 13 (relating to commercial code). For the purpose of filing, the sinking fund depository may act as representative of the bond or note holders and, in that capacity, execute and file the financing statement and any continuation or termination statements as secured party.
53 Pa.C.S. § 8147