Emergency ordinances, except an emergency ordinance for the acquisition of real property, not including roadways and/or utility easements, ordinances raising revenue, except an ordinance which directs the sale or delivery of the product of any public utility to anyone outside the Municipality, or for street improvements petitioned for by sixty percent or more of the owners or by the owners of a majority of the feet front property benefited and to be specially assessed for the cost thereof, and those making appropriations for current operating expenses of the Municipality, shall take effect upon passage, and shall not be subject to referendum. Whenever Council is required to pass more than one ordinance to complete a public improvement project, a referendum may be held on the first ordinance passed, but not on any subsequent ordinance in the series. All other ordinances shall take effect thirty days after passage in order to afford an opportunity for the filing of referendum petitions. (Amended 11-2-04)