A. Except as provided in Subsection B of this section, an ordinance imposing, amending or repealing a tax or an increment of tax authorized by the Municipal Local Option Gross Receipts and Compensating Taxes Act shall be effective on the first July 1 after the expiration of at least three months from the date the adopted ordinance is mailed or delivered to the department.
B. If the governor declares a state of emergency, or if there is an unforeseen occurrence that would cause a municipality's reserves to drop below the amount required by the local government division of the department of finance and administration, as certified by the division, an ordinance imposing a tax or an increment of a tax may become effective on the first January 1 after the expiration of at least three months after such a declaration or event and notification to the department.
C. The ordinance imposing, amending or repealing a tax or an increment of tax shall include the effective date.