AN ACT TO AMEND SECTION 27-31-46, MISSISSIPPI CODE OF 1972, TO REVISE THE DEFINITION OF "PROJECT" TO INCLUDE FACILITIES STORING ENERGY USING BATTERY ENERGY STORAGE SYSTEMS, FOR PURPOSES OF A COUNTY'S AUTHORITY TO GRANT CERTAIN AD VALOREM TAX EXEMPTIONS OF UP TO 50% OF THE TOTAL ASSESSED VALUE OF CERTAIN PROJECTS; TO AMEND SECTION 27-31-46.1, MISSISSIPPI CODE OF 1972, TO EXTEND THE INITIAL CONSTRUCTION DEADLINE FOR PURPOSES OF ELIGIBILITY OF CERTAIN ENERGY PROJECTS FOR CERTAIN AD VALOREM TAX EXEMPTIONS OF UP TO 50% OF THE TOTAL ASSESSED VALUE OF THE PROJECTS; TO EXTEND THE DEADLINE BY WHICH COUNTIES AND MUNICIPALITIES MAY AUTHORIZE SUCH EXEMPTIONS; TO AMEND SECTION 27-31-101, MISSISSIPPI CODE OF 1972, TO ADD ENTERPRISES OWNING OR OPERATING A FACILITY FOR THE MANUFACTURE, ASSEMBLY OR OPERATION OF SYSTEMS OR DEVICES USED IN THE GENERATION OR STORAGE OF ENERGY, FOR PURPOSES OF A COUNTY'S OR A MUNICIPALITY'S AUTHORITY TO GRANT CERTAIN AD VALOREM TAX EXEMPTIONS; TO EXTEND THE DATE OF THE REVERTER ON THE SECTION OF LAW; TO AMEND SECTION 27-31-104, MISSISSIPPI CODE OF 1972, TO EXTEND THE DATE BY WHICH A FEE-IN-LIEU AGREEMENT MAY BE ENTERED WITH CERTAIN QUALIFIED BUSINESSES FOR PURPOSES OF THE MINIMUM FEE-IN-LIEU AMOUNT OF 1/10 OF THE TOTAL OF ALL AD VALOREM TAXES OTHERWISE PAYABLE AS ANNUALLY DETERMINED; TO EXTEND THE DATE OF THE REVERTER ON THE SECTION OF LAW; AND FOR RELATED PURPOSES.