Section 13219 - Limitations(a) Any city of the first class taking advantage of this act and framing and adopting provisions hereunder shall not have powers and authority greater than those express and implied powers granted by section 18 of this act. Furthermore, such powers granted by section 18 of this act shall not be construed to include: (1) An assumption by the city of the debt of a school district or home rule school district.(2) A grant of authority to the city council of such city of the first class to enact legislation regulating public education or the administration thereof, except in respect to the setting of maximum tax rates for school purposes as shall be authorized by the General Assembly from time to time.(3) A grant of authority to frame charter provisions which contravene any act of the General Assembly applicable in every part of the Commonwealth or applicable to all school districts of the Commonwealth.(b) Nothing in this act shall be construed as constituting a prohibition against agreements including, but not limited to, joint tax collection, joint purchasing of supplies, equipment and contractual services, use of recreational and park equipment and facilities, control and prevention of juvenile delinquency, city planning, capital budgeting, capital programming and comprehensive development planning, with any municipal or former county department, agency, office, board or commission or any agency of the Commonwealth or the United States Government, when, in the opinion of a duly constituted board of education of the home rule school district or its authorized agents, such agreement will further the efficient and effective administration of public education.(c) Charter provisions adopted or amended in accordance with this act shall not be inconsistent with the Constitution of the United States or of this Commonwealth.1963, Aug. 9, P.L. 643, art. III, § 19.