Amendments may be made to the original appropriation at any time during a current fiscal year after a public hearing before the council on five (5) days' notice published once in the official city newspaper; provided, that increased appropriations may be made only after the city manager has certified in writing that a sufficient amount of unappropriated revenue will be available, except for emergency appropriations as provided in § 6-35-307.
T.C.A. § 6-35-308