Ordinances or resolutions providing for appropriations for the current expenses of the City, annual tax levies, for street improvements petitioned for by the owners of a majority of the feet front of the property benefitted and to be assessed for the cost thereof, compliance with Division (B) of Section 7.05 of this Charter, submitting proposed Charter amendments to the electors, or establishing or calling for an election shall not be subject to initiative or referendum powers. When the Council is required to pass more than one ordinance or resolution to complete the legislation or procedure necessary to make and pay for any public improvement, the initiative and referendum power shall apply only to the first ordinance or resolution required to be passed and not to any subsequent ordinances or resolutions relating thereto. Emergency measures adopted pursuant to Section 4.03 of the Charter shall not be subject to referendum.