53 Pa. C.S. § 8105
In addition to the provisions required or permitted by sections 8103 (relating to ordinance authorizing issuance of bonds or notes or instruments evidencing lease rental debt), 8147 (relating to pledge of revenues) and 8148 (relating to deeds of trust and other agreements with bondholders and noteholders), the ordinance authorizing the issuance of revenue bonds or notes or guaranteed revenue bonds or notes may also contain the following:
(1) Covenants or provisions with respect to the collection, custody, investment and disbursement of rents, revenues, rates and charges for the use of the project as may be desired.
(2) Covenants as to the fixing and collection of rents, rates and charges for the use of the project as may be desired and deemed necessary for the lawful security of the holders of the bonds or notes, except that no covenant and no agreement with the holders of bonds or notes shall require an increase in the rents, rates, tolls and charges to a level which, in the opinion of the registered professional engineer advising the local government unit, will result in a decrease in gross revenues over what would have been received at a somewhat lower rate level.
(3) Provisions granting a security interest in the rents, revenues, rates, tolls and charges for the security and benefit of the holders of the notes, bonds and coupons.
(4) Provisions creating such reserve funds or accounts as deemed desirable for the future security of the notes, bonds and coupons and requiring the observance of such covenants on the part of the local government unit deemed necessary or desirable for the protection of the holders of the notes, bonds and coupons or for the maintenance and preservation of the project.
(5) Authorization to the proper officers of the local government unit to execute and deliver any trust indenture containing any other, further and lawful provisions desired.
53 Pa.C.S. § 8105