11 Pa.C.S. § 11050: Time ordinances go into effect.

(a) Timing.--Except as provided in subsection (b), an ordinance enacted by council may not go into effect before 10 days from the time of the ordinance's final enactment by council.

(b) Immediate enactment.--The following may be made effective upon final enactment:

(1) An ordinance:

(i) Expressly required to be enacted by the general laws of this Commonwealth.

(ii) Expressly required to be enacted by the provisions of any act of the General Assembly.

(iii) That contains provisions and matters which are subject to the approval of an officer or tribunal of the Commonwealth.

(2) An ordinance or resolution where permitted providing for any of the following:

(i) Tax levies or fees.

(ii) Annual and other appropriations.

(iii) The exercise of the right of eminent domain.

(3) An ordinance providing for any of the following:

(i) The preservation of the public peace, health, morals and safety.

(ii) The exercise of the police powers of the city government.

(iii) The prevention and abatement of nuisances.

(4) An ordinance providing for an election to increase indebtedness and any other ordinance which by law must be submitted to an election before it shall take effect.

(5) An ordinance providing for the opening, paving, grading or other improvement of streets or highways if the improvement is petitioned for by a majority, in number or interest, of the abutting property owners.

(6) An ordinance providing for either:

(i) the construction of sewers; or

(ii) streets, highways and sidewalks to be kept in:

(A) Good order and repair.

(B) In a safe and passable condition.