The monies authorized to be received by school districts from the School Ad Valorem Tax Reduction Fund pursuant to Section 37-61-35 shall be included as ad valorem tax receipts. The levying authority for the school district, as defined in Section 37-57-1, shall reduce the ad valorem tax levy for such school district in an amount equal to the amount distributed to such school district from the School Ad Valorem Tax Reduction Fund each calendar year pursuant to said Section 37-61-35. Such reduction shall not be less than the millage rate necessary to generate a reduction in ad valorem tax receipts equal to the funds distributed to such school district from the School Ad Valorem Tax Reduction Fund pursuant to Section 37-61-35. Such reduction shall not be deemed to be a reduction in the aggregate amount of support from ad valorem taxation for purposes of Section 37-19-11 [Repealed]. The millage levy certified by the State Board of Education as the uniform minimum ad valorem tax levy or the millage levy that would generate funds in an amount equal to a school district's district entitlement, as defined in Section 37-22-1(2)(e) [Repealed], shall be subject to the provisions of this paragraph.
In any county where there is located a nuclear generating power plant on which a tax is assessed under Section 27-35-309(3), such required levy and revenue produced thereby may be reduced by the levying authority in an amount in proportion to a reduction in the base revenue of any such county from the previous year. Such reduction shall be allowed only if the reduction in base revenue equals or exceeds five percent (5%). "Base revenue" shall mean the revenue received by the county from the ad valorem tax levy plus the revenue received by the county from the tax assessed under Section 27-35-309(3) and authorized to be used for any purposes for which a county is authorized by law to levy an ad valorem tax. For purposes of determining if the reduction equals or exceeds five percent (5%), a levy of millage equal to the prior year's millage shall be hypothetically applied to the current year's ad valorem tax base to determine the amount of revenue to be generated from the ad valorem tax levy. For the purposes of this section and Section 37-57-107, the portion of the base revenue used for the support of any school district shall be deemed to be the aggregate receipts from ad valorem taxes for the support of any school district. This paragraph shall apply to taxes levied for the 1987 fiscal year and for each fiscal year thereafter. If the Mississippi Supreme Court or another court finally adjudicates that the tax levied under Section 27-35-309(3) is unconstitutional, then this paragraph shall stand repealed.