53 Pa. C.S. § 8107
When an acceptable proposal for the purchase of the bonds or notes, or any part thereof offered separately, has been received and is in conformity with the terms of the official invitation for proposals or is an acceptable proposal at a negotiated or invited sale, and is in compliance with the provisions of this subpart, it may be accepted by resolution or by ordinance. If the acceptance is made by resolution, the acceptance shall be conditional upon compliance with section 8103 (relating to ordinance authorizing issuance of bonds or notes or instruments evidencing lease rental debt). If the acceptance is made by ordinance, the ordinance shall also fix any details of the series of bonds or notes being sold, not fixed by prior ordinance, and award the bonds or notes, or those which have been sold, to specified purchasers at prices specified in the ordinance. These provisions may be included in the ordinance adopted pursuant to section 8103. Notwithstanding any other provision of this subpart or of any other statute, as between the local government unit and the purchasers, an awarding resolution or ordinance shall be effective upon its final adoption or enactment by the governing body. The advertisement of the ordinance prior to enactment shall be sufficient if it describes the items to be completed from the proposal.
53 Pa.C.S. § 8107